https://deadline.com/2018/08/supernatural-spinoff-update-cw-wayward-sisters-1202440740/
CW boss Mark Pedowitz received his semi-annual TCA question on whether there would be a Supernatural spinoff down the road and his response today was, “If the executive producers want to do one, we’re open to listening to one.”
Two swings, two misses. Will a third time be the charm? Or have the brothers poisoned the well such that any other storyline in their universe is bound to fail without them as the protagonists? Personally I'd love to see it expand and continue with the right story/characters/actors.

