How many seasons are expected of Supernatural on the CW?

So far a season 4 and 5 have been booked but I am not sure about any others. Let's hope that there are many seasons to come on this brilliant show! Hope this helps



Despite Eric Kripke's original plan to limit "Supernatural" to five seasons, the show has been picked up for a sixth season as of Februrary 16, 2010. Jensen Ackles and Jared Padalecki are both on a six year contract for the show and will definitely be apart of season six.