Believe it or not, Nip Tuck has been canceled. I think this is the last season. Which is ridiculous because it happens to be one of the best shows FX has ever had. Apart from The Riches.
Unfortunately it is true, Nip/Tuck has been cancelled :-( This is the last season! That being said, I've personally started a petition to send to FX Networks and the writers of the show to bring it back. If you want to help bring Nip/Tuck back sign the petition and get your friends to sign it too! Here's the link: link