Your probable WrestleMania 33 card:
Goldberg vs Brock Lesnar for the Universal title (no, it is not now 2004 again)
The Undertaker vs Roman Reigns
Bray Wyatt vs Randy Orton for the WWE title
Chris Jericho vs Kevin Owens for the United States title
The Big Show vs Shaquille O'Neal (yep)
John Cena & Nikki Bella vs The Miz & Maryse
Charlotte vs Bayley vs Nia Jax vs Sasha Banks for the Raw Women's title
AJ Styles vs Shane McMahon
Triple H vs Seth Rollins had been in the works but is now not likely to happen due to Rollins re-injuring his knee. Presumably, Triple H does something involving Samoa Joe or Finn Balor instead.
No word on what Dean Ambrose, the Smackdown women or any of the tag teams might be up to. Presumably they tack on another Andre the Giant Memorial Battle Royal to get other guys on the show.