#3 Prophecy 2.0
While The Undisputed Era has been ruling NXT for over two years now, there is nothing left for them to accomplish on the Black and Gold brand. The current NXT champion Adam Cole is involved in a program with Velveteen Dream, and with Adam Cole becoming the longest reigning NXT Champion recently, it is more than likely that Cole will lose the title to the Dream.
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Post that, The Undisputed Era should move over to either RAW or SmackDown. Not only will this lead to fresher feuds on whichever brand they move to, but it will also lay down the foundation for a long-term storyline. Remember Adam Cole's prophecy of The Undisputed Era winning all gold in 2019? Given the success of that on NXT, WWE should recreate this storyline of The Undisputed Era fulfilling the prophecy yet again, which will only add to their credibility.