Starpulse “A 'Supernatural' Spin-Off? Death By Bad Taco? Series Creator Eric Kripke Explains”
(...) One thing I'll say, however..when the writers and I are procrastinating in the room, we sometimes discuss a possible "Supernatural" spin-off...a prequel that relates the adventures of Samuel Colt and the band of hunters who roamed the Old West. As I said, I consider "Supernatural" a kind of modern-day Western, so it'd be cool to go all the way with it, and make an actual horror western. And I like the idea that the "Supernatural" universe is a fleshed-out one with a history that goes back centuries. Who knows, maybe one day I'll be able to tell that story. (...) How do the writers foresee the end of the show? Have you planned that out yet?
I'm certainly not going to tell you what the endgame of the show is...but yes, it is planned out. I know what the last scene of the series is. I've known this final story, how it all ends, from the very beginning, from before we even shot the pilot. And I've never wavered from it, not once. Some smaller story threads shift a bit - a Roadhouse here, some psychic kids there - but at the end the day, those aren't what the show's truly about, at its core. But we've always been steadily on the course of the main story, the big story, and we're heading towards it in a very conscious way. (...)
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