5 Ways WWE Can Make WrestleMania 35 The Greatest WrestleMania Ever

#3 A heel John Cena ends the Undertaker's career

Will the Cenation Leader finally embrace the dark?

It's a damn shame that John Cena never turned heel when the situation demanded his character to alter his perspective, but this could finally happen if the company wants to end the Undertaker's career.

Since Roman Reigns is already being pushed to the moon as the babyface, John Cena's golden days are legitimately numbered and the only way to recover back is to turn heel.

In what was an embarrassing squash match, the Undertaker defeated the Cenation Leader and rendered him completely senseless in the middle of the ring.

While Cena continues to work limited dates, a rematch against the Phenom seems more logical as far as compelling storyline is concerned.

With the fans expecting a Career Vs. Career stipulation, this could finally be the right time for John Cena to end the Deadman's career and retire him.

Not only would the heel turn shock the entire world, but would also create tremendous opportunities for the 16-time World Champion, as he moves ahead.