My wishlist:

- Return of DOS2 style OST. It was so much more epic and awesome than what BG3 provided. I still get chills when entering Act 2 in DOS2 when you ride in on the ship with the epic music playing.

- Fully voiced MC. Won't happen though because of Larian's commitment to Blank Slate PC's...

- Origin characters for all. Not just the companions of the game turned into Origins where you just play through their story. But unique backgrounds for different races that allows your PC to fit into the game world (You can still keep your Blank Slate character option for those that prefer it). Ideally some of these will have unique prologues and unique interactions with different people/factions.

- Deeper companions. With inter-companion relationships (With some being so hostile towards each other you cannot recruit both). Also, give them some autonomy, don't just make them things you collect and then will happily sit in camp the entire game while you ignore them, despite them having things they want to do...

- Diverse companions. Don't make them all "Pretty" and don't make them all "Nice and likeable". I want variety. I want characters like Astarion that I dislike. I want characters like Beast who's not conventionally "Pretty". But I also want sweethearts like Lohse and beauties like Shadowheart. Having variety makes things more interesting. Especially if the aforementioned depth means they aren't just Pokemans that you collect every run because there's no reason not to.

- Movement and actions to be separated. Much like how BG3 clearly separates Movement, Standard Action, Bonus Action and Reaction. It would be nice if Divinity kept movement and actions separate, meaning that you (Or enemies) can close the distance/reposition and still do something. (Beyond that I'm whatever about it... Going back to AP would be fine as would D&D style combat. I err towards AP as it's more flexible). You can keep "disengaging" competing with actions, but none of that "The best strategy is to stand still and fling ranged attacks at the enemies whom are using all their AP to move closer and so don't fight back" garbage.

- Enemy turn consolidation. If multiple enemies are taking turns in a row between your character actions (Which is common with Larian's love of large numbers of enemies), have them all take their turns simultaneously rather than one-by-one. So that combat can be sped up, especially in large scale fights. (BG3 has hints of this, as multiple enemies just using Dash and moving closer will occur simultaneously)

- Enhanced Surface design. Separate sufaces into dedicated abilities to create and manipulate them. Meaning that someone who chooses not to deal with them, doesn't constantly interact with them. Meanwhile, improving the depth and complexity of surface combinations and interaction. Thus allowing people to build for messing with surfaces or not. Of of the main issues with the system in prior titles is that it is forced upon you (Then of course the whole "Hitting an enemy makes the ground below them into a blood surface... Hence it just devolving into Necromancy abusing Blood surfaces and/or Electrified Water/Blood) which takes any interesting strategy with it and throws it out the window when every battle just becomes one giant electrified blood surface no matter what (With a few exceptions, like that one encounter in DOS2 Act 2 with the blobs of tar where everywhere becomes fire)