#2 Matt Hardy
Matt and Jeff Hardy became the SmackDown Tag Team Champions shortly after WrestleMania, but an injury to Jeff Hardy has forced Matt to sit out for most of the year rather unfortunately. How do you have a legend like him not appear on the show when he's a part of your active roster? This problem could be easily remedied when the brand split happens.
I'm guessing that the Wild Card Rule will be gone with the brand split, meaning that there will be a lot more opportunities for a lot more performers, in coming weeks. We could always see Matt Hardy make a return to the ring, either in his Woken Persona or any of the other personas that he has adopted over the years (it may rival Chris Jericho's gimmicks in terms of sheer number). Hardy could also return as enhancement talent to put over new and young superstars like Andrade, who're hoping to make a name for themselves in the roster.
Corey Graves deleted his Tweet! More details HERE.
Remember the pop that the Hardyz received when they made a return at WrestleMania when the whole arena exploded with sheer intensity? It won't be the same if Matt Hardy returns, but I'm sure more than one person would be glad to see him back where he truly belongs.