One thing I'm worried about is how far they're willing to go with changes to the game. Swen gave the example of D:OS2 changing during EA, but from what I see it wasn't that much. BG3 needs much greater changes and a lot of work.
I have the same concern, they seem to have a vision of what they want that is cast in stone and I doubt they will go an extra mile to change that, even when there are so many BG3 EA reviews out there pointing out the game is lacking in so many aspects....
They have the chance to make a game changing RPG but if the game vision doesn't change then they are probably going to botch it.