#4 Rebuild The Authority
Kane had a long run with The Authority back in 2014-15, serving as the henchman for the villainous stable.
He even had two different personas on WWE television at that time; a Corporate Kane and a Demon Kane.His alter-egos were a fun sight to watch on WWE television and were an excellent representation of his talents.
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Kane has returned as a heel (bad guy in wrestling) on RAW, and it could lead to the revival of the Authority with HHH and Stephanie returning.
The prospect of the Authority reuniting will not be a decision that appeals to fans but it could be a blessing in disguise for Kane.
A new Authority stable could be an interesting twist and will most likely produce some entertaining segments and matchups on WWE programming.