There is something that could be done with the NWA. He could unify a lot of the indies and help to retain more talent by having a national TV deal. It might keep the WWE from stealing talent as much as they currently do.
What makes you think they can get a TV deal?
Impact is on a tiny network (Pop) that doesn't even pay them a fee -- they just do an ad revenue split -- and on an outlet owned by its parent company (Fight Nightwork)
Ring of Honor is mostly on channels and outlets owned by its parent company (Comet, Sinclair Stations, rohwrestling.com, etc) and a few random stragglers (Fight Network, Fite TV, etc).
Lucha Underground is on a tiny channel owned by one of its parent companies (El Rey) and doesn't air year round
NJPW is on AXS TV, and generally shows a months-old episode of NJPW's weekly highlight show dubbed over with English commentary and takes multiple extended breaks during the year.
That's what the combined might of the likes of Jeff Jarrett, Konnan, Bubba Ray Dudley, Jay Lethal, Christopher Daniels, Kazuchika Okada, Hiroshi Tanahashi, Eddie Edwards, Davey Richards, Bobby Lashley, Dalton Castle, the Briscoes, Kenny Omega, the Young Bucks, Tetsuya Naito, Pentagon Jr, Rey Mysterio Jr, Ricochet/Prince Puma, Ray Fenix, John Morrison, Cody Rhodes, War Machine, Marty Scurll, Will Ospreay, Alberto Del Rio, etc can bring to US TV outlets.
What exactly does Corgan have to compete with those companies? Who is his star? Why would companies who won't give ROH or Impact a major cable TV deal do the same for the NWA?