1. Yes.
2. Idk, from what I've heard it's really good in BG3, though it could be tweaked a bit to be more in line with the originals. One person made an amazing mockup.
3. I'm not sure why BG1 over BG2? I didn't hate it, but BG2 improved A LOT on the UI and player-friendliness. I'd use BG2 UI and "modernize" it a bit while keeping the overall feel and convenience.
4. I agree on RTwP, but that battle had been lost before it started. I have the tiniest of hopes for such a mode in Definitive Edition or, more likely, a mod.
5. A small handful of BG1/2 items would be nice, but I'd rather have most be new ones. Similarly to BG1 -> BG2 transition. Some subtle sound references would be very nice.
6. Some cameos would be nice (and are confirmed, afaik). I'd like to see Xan and Edwin as a lich. (Or Xzar. Damn that BG2 canon treatment of Xzar.) But I'd leave most out of it - it would just seem like trying to get people to acknowledge BG3 as BG by parading old characters... and it's better for a sequel (especially one that's not in the same saga) to be mostly fresh while retaining series' identity. Even BG2, a direct continuation, had most things new. (That and tbh I don't know if I trust Larian to get the characters right. Sorry. Writing some else's character is... iffy.)
