Speaking of NXT call-ups, Sami Zayn can't be too far off either. The former ROH fan-favourite has bulked up noticeably since taking time off for injury, a possible indication of a big singles push. Should he find himself on the main roster in 2016, there's only one man to feud with - former nemesis Kevin Owens. Owens and Zayn have enjoyed a promotion-spanning rivalry over the years, one which simply must be repeated on the main roster. Enough time has passed since the pair clashed on NXT, with Owens having since enjoyed a trio of great matches with John Cena and a spell with the Intercontinental Championship. Sadly, after losing the title to Dean Ambrose, Owens risks sliding into midcard obscurity. WWE should allow him to cut loose and enjoy a hard-hitting feud with his old foe, one which would really struggle to fail, given the charisma and wrestling ability of both men.