#3 Braun Strowman turns heel
There has been this theory about the character of The Fiend that whoever faces and loses to him goes through a character change. We initially saw this with Finn Balor, who lost to him at SummerSlam 2019 and returned to NXT a few months later as a heel with his former "Prince" gimmick.
He was then followed by Superstars like Seth Rollins, The Miz, and Daniel Bryan who lost to The Fiend and had a change in their character. Even John Cena revisited many of his previous gimmicks during the Firefly Fun House match at WrestleMania 36.
If that is the case, losing to Bray Wyatt at Money in the Bank could trigger a similar character change for Braun Strowman. The Monster Among Men was once a massive heel, destroying everything and everyone on his path. Since then, he has had a bunch of face and heel turns and currently is again a huge babyface on the SmackDown roster.
WWE can easily book a heel turn for Strowman after a loss to Wyatt as the entire purpose of Bray has been to destroy what he created. Maybe there's even a possibility of Strowman joining his former master again!