The good thing about BG3 is that it will probably create demand for more D&D CRPG's. Also from other developers. Maybe we'll eventually get a AAA Forgotten Realms game that plays like 5e. Probably tabletop rules will improve with One D&D as well, and video game needs won't be forgotten.
I still don't like Larian's gameplay ideas and "must haves" for an RPG. Maybe they can license the engine to someone else.
