#4 Randy Orton
We have seen this feud multiple times in the past, and since both Randy Orton and John Cena have reached legendary status with WWE, there’s no need for them to play face & heel, if they face off at WrestleMania 36.
WWE could follow the same formula as the Orton vs Triple H match, which took place at Super ShowDown earlier this year. With Cena becoming a record 17-time World Champion, and him doing a limited schedule because of other commitments, dropping the title to Orton at WrestleMania 36 would be the right thing to do.
Orton is a 13-time world champion in WWE, and it could be a chance for Vince McMahon to thank him for his loyalty toward the company. WWE announced on their Twitter handle that Orton signed a multi-year deal with the company, and it looks like he'll end his career where it started.
#3 Seth Rollins
It’s safe to say the Seth Rollins’ days as a babyface are soon coming to an end, as he is getting the same reaction Roman Reigns once received from crowds. WWE reportedly edited the crowd reaction during Rollins' segment on last week's pre-taped episode of RAW from Manchester. Rollins commented on the situation and called fans fickle for the reaction.
WWE must pull the trigger on another Rollins heel turn, as it's the only way to save his character from becoming stale. Going by this prediction, Rollins could turn heel on Randy Orton and take the WWE Championship away from him after he wins the 2020 Money in the Bank Ladder Match and cashes in.
As we have seen in the days of The Authority, Rollins & Orton have good chemistry with one another. Having Rollins take the WWE Championship away from Orton could open the doors for more memorable moments between the two Superstars heading into the future.