Not to fully transform into the Pepe Silvia meme pointing at a wall of "evidence" but I'm convinced Blizzard is gearing up to announce something StarCraft-related at BlizzCon this year.
The first reliable clue came from Bloomberg reporter Jason Schreier's 2024 book on Blizzard's history where he said the studio was "incubating" a StarCraft shooter (not that one) under the helm of former Far Cry producer Dan Hay.