From Digital Spy:
Supernatural stars Jensen Ackles and Jared Padalecki have admitted that they would be open to filming a sixth season of the cult drama.
Speculation had been growing that the CW show would finish following its fifth season next year, after creator Eric Kripke revealed that he had a definite five-year plan and contract with the network.
Speaking to the Coventry Telegraph at last weekend's Asylum 3 convention in Birmingham, Padalecki said: "Season four has had the best viewing figures we've ever seen.
"It just seems to be on an upward curve so the studio's really keen to see more...My best guess is that Supernatural will go beyond season five."
During a later question and answer session with fans, he added that he would only want to reprise the role of Sam Winchester "if there is still a story to tell" and "still something for me to bring to the show".
Ackles (Dean Winchester) added that both actors had six-year contracts with the network but warned that their willingness to return did not mean that the studio would definitely "carry it on for six seasons".