#1 The Undisputed Era
Arguably the greatest stable in NXT history, The Undisputed Era has taken over developmental in the past year. Adam Cole is a former NXT North American Champion, while Kyle O' Reilly, Bobby Fish, and Roderick Strong are the NXT tag team champions under the Freebird Rule.
As far as talent, the four members are not lacking in that department. However, they are undersized just like the four others on this list, but it would not be a surprise if Cole who has superstar potential, gets called up first.
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ReDragon could become a main stay in the tag team division, while Strong might do well as a mid-carder or part of the cruiserweight division. They could be all successful on the main roster, but they might not have the same success as a group.
The only hope for The Undisputed Era as well as the four other NXT Superstars on this list, is Triple H getting more control on the main roster. With Vince McMahon focusing on the relaunch of the XFL in 2020, it's only a matter of time before The Game takes over.