Do you think a John Cena heel turn could happen this day in age ?

When or If Cena does come back to wwe before he does hang up his boots.. I'm expecting him to have atleast one last semi proper run before that happens. (Even if it's as a Lesnar like contract)

Anyway for years people argued Cena couldn't turn heel, it would just never happen and I agreed at the time but now I don't know.. honestly look at the product and remembered when people said Cena needs to be a babyface for the kids and all that but now look at it.. he's not even there!? He hasn't been in the ring in a match for over a year? I think the time has come it would be okay, like clearly it wouldn't hurt or be a big deal considering he's not there anymore really.

Could really help with ratings