#3 Not going to retire soon: Brock Lesnar
Brock Lesnar performs as a part-time Superstar for WWE. He only works in big pay-per-views and yet takes away a lot of money from Vince McMahon for a single appearance.
Seth Rollins defeated Lesnar for the Universal Championship at WrestleMania 35 and fans were relieved because they thought the latter wouldn't return to WWE anytime soon. However, in May, Lesnar shockingly returned and won the Money in the Bank briefcase. It is almost confirmed that WWE wants him to have another world title reign, sooner or later.
According to a rumor, Brock Lesnar discussed retiring from WWE at next year's WrestleMania 36 with Vince McMahon, but considering WWE is losing ratings and they are also going to compete with AEW soon, it wouldn't be shocking if The Beast continues working for McMahon. After all, there's a reason why the CEO of WWE pays millions of dollars to Lesnar every year.