#2 John Cena heel turn
It is not the first, nor last time that a John Cena heel turn will be anticipated on the road to Wrestlemania 34. While this 'twist' has been predicted a plethora of times in the past, it is possible that the only place to do it is in a dream match against The Undertaker.
Just imagine a scenario in which John Cena is unable to put The Deadman down. The only way to win this dream match is to hit a low blow or pull out a chair. Personally, I doubt the possibilities of Cena turning heel.
A top AEW star just called one of his colleagues 'spoiled' and 'narcissistic' HERE.
With that being said, if it does ever happen, it must be against The Undertaker at WrestleMania. That is the only scenario in which it makes sense for Cena to abandon his morals, and the fans. Cena has always played the character of a man obsessed, maybe now it is time for his obsession to get the better of him.