#3 AJ Lee

Time for some fantasy booking.
AJ Lee has been away from WWE for a long time now and it's no secret that the WWE Universe is absolutely clamouring to see The Geek Goddess return. Of course, WWE already tried to contact her to make a return at the Evolution pay per view, but the company was turned down by the former Divas champion.
Cody Rhodes' uncle is a WWE Hall of Famer. More details HERE.
With that being said and the WWE Universe still wanting to see Lee back in action, she would no doubt serve as the perfect backup plan if Lynch isn't able to compete. In fact, unlike some of the other superstars on this list, the match would still be main event worthy, which is a huge plus for the company and the women's revolution.
In all honesty, a return from AJ Leee would probably be on the same level that a CM Punk return would be and maybe even more! Add in the uniqueness of a venue like WrestleMania and the likely one time nature of Lee's appearance and you truly have a match that will exceed expectations.