A lot of people don't believe that Cena will ever turn heel, when I hear that I just tell him two words "Hulk Hogan" Anyway, back to the topic in hand, I personally believe the WWE are just waiting for the right time to turn Cena into a heel. It could be in a month or in three years. We don't really know when, but when he does it's going to be huge. The question, is how long do you believe Cena should remain a face? How would you turn him into a heel?