Wyatt will cost Lesnar and Reigns the Rumble but not win it. We'll either have a random 4th person as champ or possibly a vacant title

Fast Lane will involve figuring out the #1 contender, probably a triple threat match, Lesnar, Reigns and Wyatt.

Reigns will win and win the belt at Mania. Wyatt and Lesnar will fight a useless match at mania and Wyatt will lose another big feud.

The big question here is who the 4th person is to be transitional champ, that could be interesting at least. A good spot for a guy the internet is clammoring for to get a short run like Jericho got waiting for HHH to return.