#3. The Fiend and his funhouse
As of now, The Fiend and Orton's match is set to be a standard one-on-one match. Plenty of fans found this announcement strange as it seemed like this was all heading towards a potential Firefly FunHouse match. However, because the match isn't stipulated doesn't mean the FunHouse won't come into play.
As the match progresses, we may see Orton and Wyatt entering the FunHouse. And why not, considering it could be a great surprise for the returning live crowd?
It also makes sense from a storyline perspective. We saw what the Firefly FunHouse does to Wyatt's opponents. The FunHouse is so effective that it "got rid of" John Cena for the past year.
The place seems to be a way for Wyatt to right his past wrongs. Last year, Bray did this by absolving Cena and avenging his prior 'Mania loss. The Fiend could do just the same against Randy Orton. Lure the snake to the trap and finally rid Wyatt of Orton for good.