#2 Batista
It is being reported that Batista is interested in returning to the WWE for a full-time schedule which includes house shows, in 2018. This is not the same Batista we saw back in 2014, the animal is now an established star in Hollywood and his next movie "The Avengers-Infinity War" is set to hit the screens next year.
This could be Batista's final stint in professional wrestling as he is nearing his 50's and has a very busy schedule in Hollywood; he has nothing else to prove in the business as he is already one of the highly decorated stars in the WWE. It is also reported that Batista is interested in having a program with Triple H leading to a match at the grandest stage of them all.
A WWE Hall of Famer isn't a John Cena fan. More details HERE
As of this writing, all signs are pointing towards a potential Batista return, and the Royal Rumble can be a good platform for Batista to make his highly anticipated return to the WWE.