5. Daniel Bryan
Daniel Bryan is also a man whose immediate future is heavily dependent on gaining medical clearing. The former World Heavyweight Champions history of concussions has seen him stranded on the side lines for the past eight months as he awaits the green light from WWE doctors. That means that at this point, for Bryan to be involved in a WrestleMania match of any sort would be a victory in itselfboth for him and for the fans. But for that match to be a meeting with AJ Styles would arguably be better than any alternative the WWE could produce. Unsurprisingly, these two met before during their time on the independent circuitalmost a decade ago to the day, in fact, for the Ring of Honor Championship. But if it were to happen again in 2016 and within the confines of WWE, it would undoubtedly be a far bigger deal. Crucially, Daniel Bryan would bring something to the table that the likes of Neville and Cesaro are somewhat lackingmajor added star power. A couple of years ago these two were holding the two biggest prizes in professional wrestling. To have them finally meet again after all these years would be a clash well worthy of the biggest WrestleMania in history.