Champions have an automatic rematch clause in their contract, right? And if any champion deserves his rematch, it's Punk after his historic reign. We'll likely see the rematch signed for EC, or maybe even on Raw.
My hunch all along has been that Jericho is behind The Shield. Even while he's away, he shows his influence on WWE. He tried to screw The Rock because he knew he could beat him for the championship(he did beat him and Stone Cold in the same night, let us not forget) and he wanted to beat Punk for title after he, theoretically, won the Rumble. Theres a million ways they could run with this story-wise.
On a side note, anyone else bothered by the fact that Punk got pinned after just a spine buster and the people's elbow!? It made Punk look weak and it was just kind of an anti-climax, especially since Punk was on the offense for 95% of the match. I was ok with The Rock winning, but not the long title reign ending like that. I think we might see the rematch at EC, and it'll be the 4 star match I was expecting last night.