#3 Giving him a Roman Reigns like push
This is what many of you might fear. Vince McMahon has this uncanny nature of pushing a Superstar to the hills if he sees potential in them. While it's not entirely wrong, there are ways to go about it.
Pushing someone up the ladder like Roman Reigns was in 2017 is not the way to go about it. The Fiend has huge potential, but WWE should learn from their mistakes.
There was a time in 2017 when Roman was booed even if he said a single word. It wasn't entirely his fault though, as he simply had too much screen time and the writing around his character was simply plain.
In simple words, WWE should simply avoid making Wyatt the circus. Instead, he should be a part of the circus. As of right now, we cannot wait for Wyatt to show up on our TV screens, and if WWE wants us to feel that way for a long while, they should simply learn from the Reigns debacle.