#1. Kane's WrestleMania retirement match
Kane has been away from a WWE ring for a while now after it was revealed that he had been chosen as the Mayor of Knox County in Tennessee. Of course, his duties in Knox County still take precedence, but it could be argued that Kane wants one final match and it could be to put over The Fiend.
If Kane and The Fiend do face off in Saudi Arabia and there isn't a clear winner or the match ends in a similar way to Seth Rollins' bout with Wyatt at Hell in a Cell, then there could then be a rematch between the two men where Kane puts his mask on the line.
If The Fiend is the man to retire Kane then it would be a huge feather in his cap as well as a passing of the torch moment. With rumors suggesting that The Undertaker won't be part of this year's WrestleMania, this would be the perfect time to allow Kane to step into his place and receive the spotlight he has always deserved.