Although if I am being completely honest, this is all I really want. I don't really care if it is Turn-Based as long as I can A) Play Single Player, B) Have A Full Party, AND C) Not Have To Micromanage Every Character Each Round.
Alllll the way back in 1988, we had a turn-based D&D computer game which allowed you to individually set one or more members of your party to automatic mode, where the computer would control them in combat for you. So, it's definitely possible! (It was the original Pool of Radiance.)