I think Randy Orton is due for a heel turn and would not be surprised if Cena turns heel, his promos are kinda teasing that already.
Cena is going to win the title, thats a definite. But I think he'll win by cheating some how. All of this talk that he "needs to win" is really building up towards that.
Remember when Austin said the same thongs? And he made a heel turn in order to beat The Rock at that Wrestlemania? My pairing with Vince.
I don't think Cena will pair with Vince but I definitely see him pairing with someone.. Or ones..