#5 The Undertaker officially retires, for real this time.
That visual of The Undertaker's hat and coat in the middle of the ring at WrestleMania is one of the more iconic visuals WWE, and wrestling as a whole, has ever produced. At the time the message was conclusive that The Undertaker was done wrestling.
However, we've seen 'The Deadman' several times since then, including most recently when he teamed up with one of the two men to ever beat him at WrestleMania, Roman Reigns, against Shane McMahon and Drew McIntyre at Extreme Rules.
I've got to be honest with you all, after being extremely concerned with Undertaker's ability to continue wrestling following the debacle that was Triple H and Shawn Michaels Vs Undertaker and Kane in Saudi Arabia and Undertaker and Goldberg, he looked really great during that Extreme Rules Match.
That being said, he does have to stop eventually, and it isn't beyond the realms of possibility that he stays away for good this year. Especially with an exciting and potentially successful Bray 'The Fiend' Wyatt waiting in the wings to take over as WWE's resident spooky monster.