A change of theme would do Morrison good. Even if they kept the one he currently has, and they make it heavier and get someone else to play it. I do like Morrison's entrances, but I think that he needs to cut out the smiling, for one. Even after WrestleMania where he got knocked out in like three minutes, he comes out grinning. He needs to quit giving his sunglasses to kids too. We get it, JoMo is a nice guy. Except, he's not meant to be -- he's meant to be cooler than all of us, and we're meant to accept that as fact.
I liked what he used to wear when he first started the John Morrison gimmick.
He needs to get some of that arrogance back, and remind us that he is a portal to the infinite, and beyond all good and evil. Dress him up like he used to be, and he'll be fine. I do like the concept of a darker Morrison. Not too much darker, but just a little toned down on the "happy tones" we are meant to get when he comes out. Every time Morrison makes his entrance, it should feel like a dream. It should go beyond an entrance.