#3 'The Demon King' Finn Balor shows up at NXT Halloween Havoc
The current NXT Champion Finn Balor, unfortunately, got injured during his match against Kyle O'Reilly at TakeOver: 31 and suffered a broken jaw. He has since successfully undergone surgery but NXT General Manager William Regal has stated that he won't be stripped of his title yet and a decision will be taken after a couple of weeks. All this could set up for a grand return of Finn Balor at NXT Halloween Havoc, which takes place two weeks from now.
But the catch here could be that instead of The Prince of NXT, Finn Balor could appear as The Demon King at Halloween Havoc. One of the few remaining supernatural characters on the current roster, The Demon King hasn't shown up on WWE programming for a long time, but a show like NXT Halloween Havoc could be the perfect place to bring the character back.
Finn Balor famously used The Demon King on NXT on several occasions previously. An interesting direction could be the Black and Gold brand announcing a match for Finn Balor at NXT Halloween Havoc, but instead of his normal self, Balor could appear as The Demon King and destroy his opponent.