What if the protagonist is not an individual but the party. Each individual would have story goals based upon there backstory ideals, goals, and flaws. But it would be the party as a whole as the identity of the protagonist, much like Force Grey, or Aquistions Inc., or the C-Team.
I love this idea and think it's the most likely one to happen. Heck perhaps the Patron mechic from Rising from the last War will make it into BG3.
