According to a report from DirtySheets.net, the original plan for Elias at WrestleMania 34 was to have him perform with his guitar, only to be interrupted by “at least five legends”. One of those legends would have been The Rock. Vince McMahon reportedly cancelled the idea when they couldn’t 100% confirm The Rock would be able to attend the show.
Speaking of The Rock, several betting sites are suggesting that he will be back. Brad Shepherd of “Backstage in WWE with Brad Shepherd and Jon Fisher” said that he had no information about The Rock making a return at WrestleMania 34. If WWE does have plans involving him, they’re keeping them top secret.