#7 WALTER
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Now, this is one that I personally hope to see, and not just because I am a big fan, but for an important reason too.
The current reigning WWE NXT UK Champion WALTER is arguably the most dominant Superstar at the moment. In over nine months as NXT UK Champion, WALTER is still undefeated on NXT UK TV, and has only lost three matches in WWE (on RAW and Survivor Series).
And while a Rumble match appearance would be a four off four main roster losses for the Ring General, I still think an appearance from him is very important.
WALTER was surprisingly eliminated rather quickly from Team NXT at Survivor Series and looked no where near as dominant as he is. Minor rumors sprung up shortly after that some backstage staff in the main WWE camp didn't like his look. I think because of this and his quick elimination, his aura was damaged, especially in main roster terms.
I think WALTER should be given the chance to show his true talents and entering the Rumble match with a dominant performance will help to show his doubters that he is the real deal.