It's probably too much to hope that they'd actually ditch wrestling.
They can't afford to. It's the cash cow that lets them pay the bills for the scripted dramas they'd rather be doing.
Seriously, wrestling is insanely more popular than science fiction. My Star Trek
publisher Pocket Books also does pro-wrestling tie-ins, and when I'm at the New York Comic-Con and do signings of my Trek books, maybe a couple of dozen people will show up for autographs over the course of an hour, but when they have a wrestler in to sign a book, the booth is absolutely mobbed and the line for autographs is dozens of meters long.