I'm not all that optimistic about BG3. I don't know why.
I just.... wonder if they could recapture the magic? I wonder if that is possible today. Anyway.
I have fond memories of the game. The first time I played BG2, I think I got about half way through the Underdark when I got stuck. Looking back, I had absolutely zero understanding of how the game's mechanics worked. I knew how to cast spells, but I don't think I really understood armor class or THAC0.
I found any battle with umber hulks, vampires or illithid not only hard but also frustrating. Confusion lasted for ages - get confused and it was basically a reload.
I liked that, in IWD2, energy drain inflicted by undead was not permanent. I hated that, in BG2, you needed lesser restoration to get rid of it, AND you didn't gain any experience while level drained.
In a way I guess it was a game balance issue - in most cases, if you had a single strong character that was immune to level drain or immune to psionics, any battle with vampires or mindflayers respectively became a cakewalk.
Maybe a Dwarven warrior would have good enough saving throws to not really be bothered by them. I never really used dwarves until I played the Black Pits 2 in BG2:EE, and man, their super good saving throws are really, really good!