Most likely, World of Warcraft will lead the show, with a strong chance of a Classic+ / new Classic project reveal and fresh details on the next major expansion path. Blizzardā€™s own BlizzCon return announcement says the event is built around big Opening Ceremony reveals and game-specific panels, while recent coverage has repeatedly pointed to WoW Classic+ rumors and BlizzCon as the likely place for that announcement.

What seems most likely

  • WoW: Classic+ or a new Classic variant. Multiple recent reports say Blizzard has been quietly building toward a Classic-related announcement, and one outlet specifically says BlizzCon 2026 is where the next WoW Classic plans are expected to be revealed.
  • WoW expansion updates. BlizzCon is also a natural place for the next big WoW roadmap reveal, especially since the event traditionally centers on future content for Blizzardā€™s biggest live games.
  • Diablo 4 content news. Expect some kind of expansion, season, or systems update, since Diablo announcements are a staple of the event format Blizzard described.
  • Overwatch 2 updates. A new hero, mode, or expansion-style update would fit the pattern of a BlizzCon showcase, even if it is not the headline announcement.
  • A surprise StarCraft project. There is at least one circulating rumor about a new StarCraft shooter, but that looks much less certain than the WoW-related chatter.

My read

If I had to rank the odds, Iā€™d put WoW Classic+ / classic-related news first , major WoW expansion info second , and Diablo / Overwatch updates third. The reason is simple: the strongest public discussion around BlizzCon 2026 has clustered around WoW, and especially Classic+.

What is less likely

  • A completely brand-new franchise steal-the-show announcement.
  • A full sequel reveal for a dormant Blizzard brand without prior buildup.
  • Anything too far outside Blizzardā€™s current live-service ecosystem, since BlizzCon is usually used to advance existing IPs and their roadmaps.

Forum-style take

ā€œBlizzCon is probably where they finally show what Classic+ actually is.ā€ ā€œDiablo will get something, but WoW is the main event.ā€ ā€œIā€™d love a StarCraft surprise, but Iā€™m not betting on it.ā€

Bottom line

The safest bet is that BlizzCon 2026 will spotlight World of Warcraft , with Classic+ being the most talked-about possible reveal, followed by smaller updates for Diablo and Overwatch.

TL;DR: expect WoW to dominate, Classic+ to be the hottest rumor, and Diablo/Overwatch to fill out the rest of the show.