With the recent announcement that Blizzard was working on a new survival game set in a brand new universe, not to mention Activision Blizzard being acquired by Microsoft, the hits keep on coming. As part of a job listing for 'Lead Content Designer - Unannounced Project' it looks like the studio is working on something new for "an established Blizzard IP".

With Diablo IV in the works, Overwatch 2, err, too, it doesn't leave many other options. With mention of "mechanically and narratively interesting missions" it certainly sounds like it could be a new mainline StarCraft.

Okay, that might be wishful thinking as the descriptions could also apply to Warcraft. Or maybe a new Lost Vikings. There's also mention of "compelling gameplay and storytelling" and "play areas, quests, characters, and dialogue" hinting that it might be an RPG of sorts. So yeah, whatever it is it sounds pretty big in terms of scope. A brand new StarCraft would be awesome, even if it was a spin-off. The same sentiment applies to something Warcraft too, seeing as WoW has been Warcraft for a while now.

Source.