As noted, TNA released the trailer above for Thursday's live Impact Wrestling teasing that "one of wrestling's hottest free agents" will debut on the show. The free agent is scheduled to be Aaron Stevens, f.k.a. Damien Sandow.
PWinsider reported that Sandow had been negotiating with TNA for several weeks, and that there are plans to do a viral campaign until the show airs tomorrow night to build up his debut.
Sandow was a fan favorite in WWE, and had worked on their main roster from 2012 - 2016. He was released from the company this past May.