Eric Kripke likes to end the show "Supernatural" after its fifth season?

Hey supernatural fans, I just recently read on a web site that Eric Kripke, the creator of the show Supernatural, would like to end the series after its fifth season, talk about heartbreaking, well as you know, season 4 introduced Gods and Angels into the show's mythology and that the demon Lillith's quest to break the 66 seals to release Lucifer sounds like it will take about two seasons and if Sam and Dean finally thwart Lillith's plan and stop Lucifer from walking the Earth, then where could the show go from there? once you've beaten Lucifer and the armies of hell, then I guess that's it for Winchesters, I don't know, what do you guys think?