A potential Supernatural spin-off has been a topic of discussion for years. The show even aired a backdoor pilot for Supernatural: Bloodlines in season 9, which followed a bunch of mob-like monster families in Chicago. That idea didn’t catch on, but that doesn’t mean the spin-off conversation is closed.
“We’ve bounced ideas over the years,” CW president Mark Pedowitz says. “If there is something that the creators and the studio want to do in terms of developing a spin-off of Supernatural, we’re open to hear it and we’re open to develop it, because I do believe there is a world where you can have a second show like this.”
Source and more: EW