I think Cena
will turn heel at some point. It may not even need him to physically do much. Perhaps just come out randomly and go off on the fans or something. It could work. Either that or have him beat up Mysterio. And
then go off on the fans.

As for Orton's face run, I still don't quite get it. Why do we, the fans, like him? He just kinda became a good guy one day...