The Supernatural franchise is coming to end — at least for now — as The Winchesters has not been able to get a second season anywhere. Producing studio Warner Bros. Television’s efforts to set up the Supernatural prequel series at another network or streaming platform following its cancellation by the CW have been unsuccessful. All possible avenues have been exhausted, and the search for a new home has come to an end, despite a strong #SaveTheWinchesters campaign led by series executive producer (and Supernatural star) Jensen Ackles.
Source:
Deadline