Should Not: Brock Lesnar
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Last year, there were rumors doing the rounds that Brock Lesnar planned to retire after WrestleMania 36, which was reported after it was announced that he had retired from UFC.
The Beast, who is currently in his eighth year with WWE in his second run with the company, has featured briefly on WWE television, with his last match coming against Drew McIntyre at WrestleMania 36.
Lesnar has still got it and can put on good matches - and more importantly, tell great stories in the ring. The Beast still has a lot to offer in the WWE and should not retire anytime soon. While some fans were not pleased with him featuring sporadically on WWE television, what he brings to the table is legitimacy and gets even the casual audience interested.
One evidence of that is his role in the men's Royal Rumble match, where he threw several Superstars over the top rope, before being eliminated by McIntyre - who eventually beat him a few months down the line.
Lesnar still has a few dream matches remaining, particularly against Bobby Lashley, Edge, and Keith Lee.
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