Who on gods earth is he going to feud with next? I'm actually alarmed that nobody jumps out to me as being the obvious choice. Literally the only person I can think of would be Mark Henry. I mean I don't wanna see Punk AGAIN, they need to stay away from each other from a while and Ziggler is WHC bound sooner or later you would think. The Shield could be an option but upto now they haven't been involved in singles matches so rushing them straight into a WWE Title feud would be pretty silly. Ryback is the only other logical option I can think of, but given the way he lost a shit ton of momentum against Punk I think he should stay away from Cena until leading into SummerSlam where he takes the title.