Again, if Peters didn’t copyright the Ares design, then CBS/Paramount could absolutely steal it and use it in their show, and either give Sean Torangeau credit or not (as Sean, not Peters, designed the ship for Axanar.) But as I mentioned before, I don’t see CBS giving Peters free advertising by using a ship design associated with a fan film. And heck, even if Peters did copyright it, the courts know his history and CBS could easily prove that the Ares (and everything else about Axanar) is a derivative design based on the Star Trek IP, and he wouldn’t have a legal leg to stand on.