I’d be totally okay with this!
If it’s a historical title I just don’t know what they’d cover. The time periods that wouldn’t overlap with an existing game would either come before or after Imperator or be post-WW2. As much as I’d love a full Fall of Rome Paradox game, I doubt any of these time periods would be next. The other option would be a more zoomed-in and focused setting, but that’s never worked out well for Paradox.
So yeah, CK3 or something non-historical like a fantasy game would make sense. A Stellaris 2 announcement would likely piss a lot of people off.