There are huge possibilities to it and with Vince McMahon still calling the shots, anything can happen.
But what else should the fans know ahead of sports entertainment's biggest event of the year?
The show kicks off at midnight United Kingdom time (Monday morning) and the pre-show may start at 10pm. The deal is expected to be complete by the end of the week.
The show will be available at Sky Box Office with live or repeat viewing. WWE won't confirm whether he is in fact retired or not because the boss always wants that option in his back pocket come WrestleMania season if he's short a big match or needs something to boost interest. It will now be interesting to see what WWE have in store for the fans.
As for Mysterio, Meltzer noted that he has no deal with WWE, but has a meeting with Triple H scheduled very soon.
Mysterio is 43 years old and hasn't made a WWE appearance since 2015, but he has been in the headlines recently since making a surprise entrance in the 2018 Royal Rumble in January.
JUST IN: Paul Manafort pleads "not guilty" to dozens of new charges
Manafort's lawyer, Kevin Downing, said he would file a legal brief questioning the scope of the judge's gag order . On Friday, Gates pleaded guilty to conspiracy to hide tens of millions of dollars while working with Manafort.
Undertaker could return for one last match against Cena in what promises to be a stunning and emotional bout.
A free agent, Cena hit the ring to ask the WWE Universe for a chance at main eventing the Payback match for the WWE Championship into a Six-Pack challenge.
Cena was quickly interrupted by commissioner Shane McMahon, who was trying to explain that while SmackDown was the land of opportunity, Cena couldn't just insert himself into the title match.
For a couple of months, there have been rumors that he would finally face The Undertaker on WWE's grandest stage. He's never competed at WrestleMania and has gotten over so well with the crowd that he was part of the Elimination Chamber title match.
The New Day and The Usos square off: Working in some of the usual comedy shtick, of course, the No. 1 contenders reminded everyone of the rivalry between them and the SmackDown tag team champions, The Usos.
Charlotte seems like a more possible opponent and Bliss may put her belt on the line against Nia Jax.