So its not a baldurs gate game for you. Thats fine.
does it look like a good game tho?
You can easly divorce these two things from one another.
I don't think you can. Or at least, I can't.
I think the problem is, if you present a game as something new then it can be judged on its own merits freely. However, if you attempt to continue an established series then people will expect certain things from it, and if those things are not achieved then you engender a feeling of missed potential. That's what's hard to stomach.
Think of Mass Effect Andromeda. Taken on its own, might have been a fairly decent game. But if you put the words "Mass Effect" in the title, people start imagining what it could have been and that's very annoying. I don't want to sit here imagining what BG 3 could have been if developed in the right direction, I want it to realize that potential and fit in with the original basis as much as possible.
I admit it's unlikely you'll satisfy everyone because appeal, (and nostalgic appeal in particular) are very subjective, but I'm just talking in terms of "making it feel like we're not just playing Divinity" and that should be eminently achievable.