The CW Developing Supernatural Spin-Off July 21, 2013 Supernatural: Bloodlines Click here for news about the Supernatural spin-off from TVLine. Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window) Related