Wednesday, 9 September 2026
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Overwatch

Overwatch is in its fourth season with the new MEKA unit tank hero D.Mon added, and a third collaboration with LE SSERAFIM is set to launch on September 13, with BlizzCon 2026 running September 12-13.

Synthesized from 8 Yomimono stories · updated 3d ago

Overwatch's 2026 calendar has been defined by a steady stream of new heroes and music collaborations. The year opened with the game dropping the '2' from its name in February, and the first new hero of that era, Sion, arrived in Season 3 on June 17. Sion is an Omnic Damage hero with dual pistols and a motorcycle inspired by the anime AKIRA, joining a new Tokyo map called Neon Junction. That season also kicked off a collaboration with YOASOBI, whose song 'Orion' was based on a short story about Genji, Hanzo, and Kiriko's childhood memories.

Season 4, opening on August 11, introduced D.Mon, a new tank hero and member of the MEKA unit, the former pro-gamer squad that includes D.Va. D.Mon had appeared in the 2018 short animation 'Shooting Star' but this is the character's first playable appearance. The reveal came with a comic and a reading video that explored D.Mon's doubts about leadership after D.Va leaves the MEKA unit to join Overwatch. The game remains free-to-play on PC, PlayStation, Xbox, and Nintendo Switch, including the Switch 2.

The most recent story is the third collaboration with LE SSERAFIM, announced on September 1. It adds new skins, emotes, and limited challenges starting September 13, with a music video for the group's single 'Made My Night' premiering September 11, co-produced by Blizzard. LE SSERAFIM will also perform at BlizzCon 2026 on September 14, following their 2023 'Perfect Night' collaboration and a 2025 in-game event. The teaser visual includes the new hero D.Mon making a finger heart, and male hero Mizuki appears as a sixth member dancing behind the group.

Key facts

Third LE SSERAFIM collaboration
The collaboration starts September 13, with new skins, emotes, and limited challenges added to Overwatch. ↗
Music video date
The music video for LE SSERAFIM's new single 'Made My Night' premieres September 11, co-produced with Overwatch. ↗
BlizzCon 2026 performance
LE SSERAFIM will perform at BlizzCon 2026 on September 14. ↗
New hero D.Mon
D.Mon is a new tank hero and a member of the MEKA unit, debuting in Season 4. ↗
D.Mon's first playable appearance
D.Mon appeared in the 2018 short animation 'Shooting Star' but Season 4 is the character's first appearance as a playable hero. ↗
Season 4 start date
Season 4, where D.Mon debuts, opens on August 12. ↗
Platform availability
Overwatch is free-to-play on PC, PlayStation, Xbox, and Nintendo Switch, including Nintendo Switch 2. ↗
YOASOBI collaboration
A collaboration with YOASOBI began July 1, adding skins for Kiriko, Hanzo, Genji, Mizuki, Juno, and Anran, and the new song 'Orion'. ↗
Sion hero and Neon Junction map
Season 3, titled 'Into the Tiger's Den,' launched June 17 with the new Damage hero Sion and the Tokyo map Neon Junction. ↗

Timeline

Synthesized by Yomimono from the cited Yomimono stories below, each itself sourced, then editorially reviewed. Every fact links the story it came from.

Facts

Announced
third collaboration with LE SSERAFIM starting September 13 · 2026-09-01
Announced
new skins, emotes, and limited challenges · 2026-09-01
Announced
music video for LE SSERAFIM's 'Made My Night' on September 11 · 2026-09-01
Announced
collab skins go live on September 13 · 2026-09-01
Announced
gameplay trailer drops on September 13 · 2026-09-01
Announced
BlizzCon 2026 will feature gameplay streaming · 2026-09-01
Announced
D.Mon as a new playable hero · 2026-08-05
Announced
new DPS hero Shion · 2026-06-12
Announced
collaboration with YOASOBI (presentation in Tokyo on May 28) · 2026-05-28
Noted
teaser visual shows heroes in black outfits, D.Mon and Mizuki · 2026-09-01
Noted
LE SSERAFIM will perform at BlizzCon on September 14 · 2026-09-01
Noted
previous collaborations in 2023 and 2025 · 2026-09-01
Noted
Overwatch is one of the five games included in the BlizzCon 2026 Digital Bundle and BlizzCon Ultimate Collection. · 2026-07-28
Noted
Sion is a human-like Omnic and Hashimoto clan executive whose motorcycle ability is inspired by the film Akira. · 2026-06-15
Noted
The season also follows a YOASOBI collaboration starting July 1. · 2026-06-15
Release
music_video · 2026-08-07 · 2026-08-07
Release
game · 2026-08-12 · 2026-08-07
Release
game · Season 4 begins on August 11 · 2026-08-05
Release
game · July 1 · 2026-06-30
Release
game · June 17, 2026 · 2026-06-15
Release
game · June 17, 2026 · Japan · 2026-06-12

Connections

Music by
shooting star, yoasobi
Produces of
blizzard entertainment

Structured graph also available as JSON at /public/entities/overwatch. CC BY 4.0.

Claim activity

When a claim about Overwatch was confirmed, debunked, or disputed against open-web sources. The record stays even after a claim drops off the facts list.

  • Confirmed collaboration with YOASOBI May 28 · source

All coverage

Sep 1

Overwatch and LE SSERAFIM Announce Third Collab Starting September 13

Blizzard Entertainment and K-pop group LE SSERAFIM will launch their third collaboration on September 13. The event runs for a limited time, with no end date announced. New skins, emotes, and limited challenges will be added to Overwatch. The collaboration was announced on the official Overwatch X account on September 1. A teaser visual shows heroes in black outfits styled as ending fairies, with the recently added hero D.Mon making a finger heart at the center. Male hero Mizuki appears as a sixth member dancing behind the group. The schedule includes a music video for LE SSERAFIM's new single "Made My Night" on September 11, co-produced with Overwatch. On September 13, collab skins go live, a gameplay trailer drops, and BlizzCon 2026 will feature gameplay streaming. LE SSERAFIM will perform at BlizzCon on September 14. This follows the 2023 "Perfect Night" collaboration and a 2025 in-game event with hip-hop fashion skins. Blizzard's Walter Kong called the 2023 collab an unforgettable moment and expressed excitement for the new video and stage.

Aug 7

Overwatch Reveals D.Mon Hero Trailer Ahead of Season 4

Blizzard Entertainment released the hero trailer for D.Mon, the new tank hero joining Overwatch, on August 7. The trailer, titled "Ketsudan" (Decision), depicts D.Mon leading the MEKA squad against Junkers such as Wrecking Ball. D.Mon is a member of the MEKA unit, a group of former pro gamers including D.Va, and this marks the character's first appearance as a playable hero, though D.Mon appeared in the 2018 short animation "Shooting Star." The animation was co-produced by Red Dog Culture House. Alongside the trailer, a reading video titled "Shiren wo Koete" (Overcoming Trials) was released, featuring LilyPichu, the English voice actor for D.Mon, reading the latest comic "Crossroads." The comic depicts D.Mon struggling with doubts about leadership qualities after D.Va leaves the MEKA unit to join Overwatch, leaving the squad weakened. A gameplay trailer is scheduled for August 8, followed by a season trailer on August 11. Season 4, where D.Mon debuts, opens on August 12. The game is free-to-play on PC and consoles, including Nintendo Switch 2.

Aug 5

Overwatch Reveals D.Mon, New MEKA Unit Hero for Season 4

Blizzard Entertainment released a teaser video for D.Mon, the next playable character in Overwatch, on August 4. D.Mon is a member of the MEKA unit, a squad of former pro gamers that includes D.Va. The unit was formed because operating the mechs' advanced systems requires excellent reflexes and judgment, and top-tier players answered the conscription. The teaser shows D.Mon's mech, holding a beam saber in its right hand, taking off with great momentum, and also features D.Va's mech. A full hero trailer is scheduled to premiere at 1 a.m. Japan Time on August 7 (9 a.m. Pacific Time on August 6). D.Mon will be added when Season 4 begins on August 11. This is the character's first appearance as a playable hero, but D.Mon can be seen at around 0:24 in the 2018 short animation 'Shooting Star,' which depicts D.Va's battles and bonds with her comrades. The game is available free-to-play on PC, PlayStation, Xbox, and Nintendo Switch platforms.

Jul 28

Blizzard Sells BlizzCon 2026 Digital Bundles for Five Games

Blizzard Entertainment has started selling the BlizzCon Digital Bundle and BlizzCon Ultimate Collection on the Battle.net shop, priced from 3,350 yen. The bundles commemorate BlizzCon 2026, which runs September 12-13 at the Anaheim Convention Center, and include in-game items for World of Warcraft, Overwatch, Diablo IV, Diablo Immortal, and Hearthstone.

Jun 30

Overwatch and YOASOBI Collaboration Trailer Reveals Skins and New Song 'Orion'

Blizzard Entertainment released a gameplay trailer for the Overwatch x YOASOBI collaboration, launching July 1. The trailer shows collaboration skins for Kiriko, Hanzo, Genji, Mizuki, Juno, and Anran, and features the new song 'Orion,' inspired by the short story 'The Sparrow That Fell to Earth.' The song is included in YOASOBI's 4th EP 'THE BOOK for.'

Jun 15

Overwatch Season 3 Brings Tokyo Map, AKIRA-Inspired Hero Sion

Blizzard Entertainment's Overwatch Season 3, titled "Into the Tiger's Den," launches on June 17 with a new hybrid map set in Tokyo called Neon Junction and a new Damage hero named Sion. Sion is an Omnic with a human-like appearance who wields dual pistols and can ride a red motorcycle inspired by the anime AKIRA. Her abilities include a rapid-fire primary attack, a charged X-shaped spread shot, a dodge that grants bonus health, and an ultimate that dashes forward while firing a barrage of bullets. The season also introduces a collaboration with Japanese music unit YOASOBI starting July 1, featuring new skins for Kiriko, Genji, and Hanzo, and a new song titled "Orion." The narrative focuses on the Hashimoto Clan, a criminal organization controlling Tokyo's underworld, and explores the relationship between Sion and the clan member Mizuki. Senior Game Producer Kenny Hudson and Narrative Lead Designer Miranda Moyer discussed the season's inspirations, including Japanese culture and action films like John Wick.

May 28

Overwatch and YOASOBI Collaboration Announced With New Song Orion

Activision Blizzard Japan announced a collaboration between the hero shooter Overwatch and the music unit YOASOBI at a presentation in Tokyo on May 28. The collaboration begins on July 1. YOASOBI produced a new song titled "Orion" based on a short story called "The Sparrow That Fell to Earth," which was published on the same day. The story follows Genji visiting Tokyo and recalling childhood memories with Hanzo and Kiriko. The song's title references the Orion constellation, with Ayase explaining that the theme is the three stars that appear close together from a certain angle but are actually far apart, mirroring the characters' relationships. The song will appear on YOASOBI's EP "THE BOOK 4," releasing June 26, with a US-exclusive Overwatch edition vinyl. In-game skins themed around Kiriko, Genji, and Hanzo will be added. A music video for "Orion" is being produced by animation studio A-1 Pictures. At the event, Overwatch development team members Lead Hero Producer Kenny Hudson and Narrative Design Lead Miranda Moyer appeared alongside YOASOBI's Ayase and ikura.