#4 Former WWE Universal Champion Brock Lesnar
Brock Lesnar has been synonymous with the WWE Championship picture in recent years.
Since his dominant WWE World Heavyweight Championship victory against John Cena at SummerSlam in 2014, Lesnar has held a WWE World Championship in five of the six subsequent calendar years.
But since he lost the WWE Championship to Drew McIntyre in the main event of WrestleMania 36, Lesnar has not been seen on WWE television. It was reported in 2020 that The Beast's WWE contract had expired, so Lesnar entered free agency.
Many fans believe that it's only a matter of time before Lesnar signs a new contract and returns to WWE programming in 2021.
During the early stages of the pandemic, it didn't make a lot of financial sense for WWE to keep pursuing a new contract with Lesnar. The lack of live events and fans in attendance may have discouraged the company from throwing money at Lesnar.
But with live fans set to return at WrestleMania 37. it seems inevitable that The Beast will return sooner rather than later.
With that in mind, it seems only natural that Lesnar will try to win his title back at The Showcase of the Immortals or shortly thereafter.