According to different, reliable, sources, Supernatural has made it into the CW lineup.
The Futon Critic reports that Supernatural (with an average of 3.82 million viewers) made it into the CW lineup, along with the WB's 7th Heaven, Gilmore Girls, Smallville, Beauty and the Geek and One Tree Hill. According to the Hollywood Reporter, Supernatural and Smallville will stay intact on Thursday.
Sources: The Futon Critic, Hollywood Reporter, Reuters.