#4 Lars Sullivan attacking Mick Foley
Mick Foley is the biggest hardcore legend in the history of the business. Even after so many issues with his body and having retired years ago, Foley can still take some insane bumps if he wishes to.
One of the biggest surprises that could happen during the segment could be The Freak, Lars Sullivan interrupting Foley after he announces the championship. Lars can then take him out and let everyone know that he wants the new title, whichever it may be.
#3 The title being defended on the main roster as well as NXT
One major announcement that Foley can make on the segment could be that the newest title will be defended on the main roster as well as NXT, the developmental brand.
WWE did tease this with the Women's Tag Team Championships with Sasha Banks and Bayley even appearing on an NXT show to announce that they will defend it against any team from NXT as well, but this never came into reality.
If the title announced tonight is the hardcore championship, it'll be awesome to see an NXT Superstar winning it like Adam Cole, Velveteen Dream, etc.