#4 Lars Sullivan
Out of the bunch of NXT Superstars called up earlier this year, WWE had major plans for a certain monster in Lars Sullivan. The Freak, as they call him, was rumored to go up against none other than John Cena at WrestleMania 35, before the plans were unfortunately scrapped.
The former NXT Superstar is currently out with a knee injury and could return in the summer of 2020. It would be interesting to see whether the backstage officials are still high on Lars and book him as a monster, or if he will become irrelevant soon. A feud between him and Braun Strowman could be really interesting.
#3 The Undertaker
The (dead) man known to come back from the grave time and again, The Undertaker last wrestled at Extreme Rules when he teamed up against Roman Reigns to take on Shane McMahon and Drew McIntyre. This was after his disastrous match against Goldberg at Super Showdown, which led to many fans requesting him to retire.
During his recent appearance on Stone Cold Steve Austin's Broken Skull podcast, the Phenom mentioned that he's not done and that he plans to write the ending of his career himself. With him missing WrestleMania last year, his appearance this year is up in the air. But one thing is for sure, whether it be against "The Fiend" Bray Wyatt or Drew McIntyre or anyone else, the Dead Man will come back once again.