#3 Bray Wyatt attacks the winner of the Triple Threat main event
As we are all well aware, The Miz, Daniel Bryan, and King Corbin will go to battle to determine who becomes the Number 1 contender for the WWE Universal Championship next. I think it's all too likely that Daniel Bryan comes out as the winner of this match.
In his case, there is a readymade story now that he's back with a new look and it can also become personal with the involvement of his wife and his daughter. The Miz's storyline was entertaining while it lasted, but I doubt the WWE Universe wants to see a repeat of the same thing.
As for King Corbin, he is a heel and I can't see this match happening. Bray Wyatt is also a heel and such a clash would be odd.
In any case, the surprise in this instance would be Bray Wyatt emerging from underneath the ring and pulling down the winner, all the way to hell.