After reading his most recent novel "Star Wars: Revan", I think its about time for him to leave.
The book felt like he just didn't want to write it. It read like he was dragging his heels and didn't really care about it all that much. The names, and situations were a lot more contrived and the dialogue wasn't up to what I'd expect from him after reading some of his earlier stuff.
I do find it hilarious that TOR, the "story based MMO" that was supposed to bring MMO's into a new era, has lost its head writer. It was almost as sad as when one of their project leads, Gordon Walton, left last year without so much as a public statement.