#4 AJ Styles vs Shawn Michaels

Hopefully Michaels will regrow some hair before WrestleMania season, because he just looked wrong as a bald man at Crown Jewel.
This match was rumored to be in the works for 'Mania ever since Michaels was slated to return to the ring alongside Triple H. It's believed by many WWE insiders like Dave Meltzer that Michaels' return is not a one-and-done situation.
Look who just shut down all of Tony Khan's critics! More HERE.
If Styles does lose the belt before next April, WWE has always given him a marquee opponent in his WrestleMania appearances (against Chris Jericho, Shane McMahon, Shinsuke Nakamura).
Styles vs Michaels has been a dream match fans have always talked about, and even both men have stated they'd love to face each other.
Styles gives Michaels a safe opponent to wrestle against, and of all of the part-timers to recently return (Shawn, Undertaker, Lesnar), HBK has the most appeal to offer in a showcase match with Styles at WrestleMania 35.
Michaels is still in great shape, and doesn't appear to be in pain when he moves (sort of how The Undertaker does).