That's where the disagreement lies. It can still be a BG game while being heavily a DOS+ game (meaning like DOS2 but better graphics, more features). 100% BG is BG (archaic graphics and all)
No, if BG3 didn’t have the BG lore and a rewritten rule system it would be 100% The next DOS game. That doesn’t mean it’s not evolving some aspects like the graphics, but it would still very much be DOS. BG2 was 100% a BG game, yet it added a lot of dimensions to the franchise. A DOS2 with better graphics is not a BG game, it’s DOS3, at most.
A few of you are hoping for that, yes. The rest of us are looking forward to an improved DOS type game with D&D lore and rules (and yes, a story and setting that connects the it with BG).
It’s not a few, at all. Even on this Larian forum a lot of people seem to want a game that has its own identity. I think you’ll see in the final product that’s what the devs want as well.