I really hope that the game stays as far as they could from NWN. The only party you have in NWN is when you play multiplayer. Your companion(s) have barely more personality, interaction and utility than your summoned skeleton.
If I wanted that I will search for Skyrim 2 (TES VII), not BG3.
For years I heard that NWN1 was better then NWN2, and rescently got the mobile version of NWN1 and it sucks compared to NWN2. No party, can't pick your gods, ect..., why anyone thought NWN1 was better then the incredible NWN2. I was so disappointed.