Cena's not killing anything. The Punk angle got worse when they took him out of it. He and The Rock are about to have possibly the most anticipated WrestleMania main event in history. He's still selling out arenas all over the world and selling a boatload of merchandise. Sure, some fans are sick of him, but he really ain't broke when you look at it from a success perspective and even from a fan of enjoyment perspective. What foil would The Rock have for his big WrestleMania comeback if not Cena? Because I'll tell you what, putting someone like Punk or Miz in there would result in it not being nearly as special.
You know what i like about you.. Your actually a John Cena fan, and have no problem at all mentioning it.. Just like me(but thats another topic)
I will say this.. Cena is the man, yes he is getting stale to an extent. And i feel the only reason why he needs to turn heel is because all the greats before him have done it. And he's in that category of Hogan, Austin, The Rock, HBK, HHH etc.. they all have done it.. I really feel that when and if Cena does it, it will be as big as when Hogan, Rock, and Austin did theirs. It doesn't really matter that much as to how they do it, but... it will be huge if and when he does.
WWE is hesitant to do it i think because they are not certain who would be the "face" in his place if Cena were to do a heel turn and run. Someone like Orton or even possibly Miz would have to be the big time face in return of Cena being a heel.
Sometimes i think it would be best to just have Cena as a brash tweener character. Like how Randy Orton has been and more importantly how Stone Cold and The Rock were mostly in their hay day. Cena would be a good anti-hero, and thats the direction i thought they were going to go for with him in the beginning.. dating back to 2004. With his little rapper gimmick
.
John Cena should have been the type of character to go against the establishment.. It was already fitting based on how his persona was, how he carried himself, and how he dressed. Should have kept him talking shit and not taking shit from nobody like an Austin. Should of made him not worry about pleasing the fans but not really being against them either.. idk..
Long story short.. It needs to happen and will be good when/if it does. I believe he will still be the cash cow for the E, maybe he wont be that role model for the kids no more but shit.. Kids looked up to Stone Cold and The Rock even though they weren't ideal models. But i guess the WWE want's Cena to be that model type that Hogan was in the 80's and early 90's. It will happen in the next 2 years i think. A Cena Heel turn or at least him becoming a Tweener