Apart from most of the above(6 person party,its Baldurs Gate not DoS3) my biggest wish is for this not to be true
"Is your party permanent or can you change members out throughout the adventure?
Recruited companions will be at camp when not in the adventuring party, and can be swapped in and out at camp. After the first act however you are going to have to commit, also just like in real life."
Taken straight from the help section of launcher. Nothing can be more gamebreaking for me than this shit.