6. B0oker T
The 5 time WCW Champion is on the WWE pay roll, meaning that there is always an excellent chance he could throw the boots on. Booker himself is said to have been getting itchy feet, pushing for an in ring match at old school Raw (which he didn't get). You would have to think that there is just as good chance the Book man will fancy a run out at Royal Rumble too. What you have to remember about Booker T is this, he may be 48 but he remains in fantastic shape. He is an athlete. Having wrestled all his life it must be tough being so close to the spotlight as he currently is but not able to compete. He has the will to appear for a one off and the WWE perhaps have the will to let him shine in this type of situation tonight. Given his history with so many WWE superstars it also could make for some nostalgia spots - Booker and Goldust working together again would be fun.