I'm really kinda mixed on this one. I don't know. I do feel like he's been dragged out for too long, yet I will miss him when he leaves...I think it's for the best he is replaced at this point, though. He peaked in competence and in strength in DP (as much as I hated him there). There's really nothing more for him to do unless he manages to become a badass in X and Y, which I don't see happening.
Now TRio, I could go into a page-long rant about why I want them gone, but that's another story for another day. ;)