Pro Wrestle Fest announced on their Facebook page that the next star part of the now reunion will be Mean Gene Okerlund. You can view the announcement here.
Although Okerlund was never part of the nWo, he did the first interview when Hulk Hogan, Kevin Nash, and Scott Hall formed together at the 1996 WCW Pay Per View Bash At The Beach.
Other names confirmed for the show include:
NWO Sting aka Jeff Farmer
Nick Patrick (NWO Referee)