#4 Luke Harper
Luke Harper would have been an odd instalment in a list like this six months ago considering he was largely an afterthought in The Wyatt Family at the time. However, he has shown signs of incredible potential in the past and has really broken out as a singles star as of late.
In fact, Harper came close to punching his ticket to the WWE Championship match at WrestleMania 33 when he lost AJ Styles on the February 28th edition of SmackDown Live. Regardless of whether he is ultimately added to the title match or not, he is sure to hold gold sooner rather than later.
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The former Wyatt Family member is one of the few true wild cards in WWE at the moment, and thus having him become Mr. Money in the Bank and tease cashing in the contract at any time would be perfectly in-line with his character.
If he can alter his appearance a bit, Harper can be a world champion in no time.