There was talk of Rush being moved back down to NXT but none of the storylines involve him so it doesn’t look like NXT is in the cards for him right now.
Rush has removed WWE references from his social media accounts and he’s been hinting at doing other things away from wrestling. In the latest Wrestling Observer Newsletter, Dave Meltzer says that the response in WWE when Rush is asked about is that nobody talks about him and he’s someone not being used.
Rush is still under contract with the company. For what it’s worth, Rush has been posting videos from matches he had on the independent scene before he signed with WWE.