#3 John Cena doesn't appear

John Cena. Love him or hate him, the man is synonymous with WrestleMania.
Making his in-ring Mania debut in 2004, the iconic Superstar boasts an impressive 10-4 winning streak and has competed in several main events.
This is why there is so much intrigue this year, as Big Match John is without a match or segment announced for this Sunday's show.
Everyone and their mother expect Cena to appear on the show, with speculation running rampant that Cena will replace Baron Corbin as Kurt Angle's final opponent.
Having Cena not appear would certainly be a loss, though the WWE have never been afraid to swerve fans just for the sake of a swerve.
Hopefully, Cena will appear at the showcase of the immortals, as title or no title, the iconic Superstar is always a draw.