#2 - The Undertaker
While he didn't appear on the WrestleMania 35 card, it was reported that The Undertaker was in the New York area during the event at MetLife Stadium, which could mean that he's still in town for tonight's episode of Monday Night Raw.
WWE has another show in Saudi Arabia at the beginning of next month, which The Undertaker will be a part of. As of this writing, we don't know what "The Deadman's" role will be on the show, but one would assume that he's going to be in the ring with one of the company's top guys.
So while we don't know who The Undertaker will be in the ring with at next month's show in Saudi Arabia, we could find out during tonight's episode of Raw. Does that mean that the future WWE Hall of Famer will make an appearance tonight? Perhaps. But at the very least, we should get a better idea of who the legendary "Phenom" will face on May 3.