Senior? Now I feel old.
I hope he gets a good solid storyline in S4. I felt like he was an afterthought in most of 3B, in spite of the rapport he was building with Chris Argent. He needs to be more directly involved in protecting Beacon Hills from... well, whatever it needs protecting from. If he can do so while being simultaneously both a good mentor and a vague menace, all the better.
But I guess I'd settle for watching him working out.