What makes BG3 so great is that it doesn‘t just have voice acting, it has full acting. The actor of Astarion worked for 4 years on it and claimed it was the equivalent to shooting 4 seasons of a TV show. It‘s a huge scope that almost nobody can or want to afford. I mean those studios who can just don‘t take that part very seriously and are eyeing with simply opting to use AI instead. I doubt it will ever be recreated, maybe not even by Larian themselves.