The MMO that Nickelodeon is unveiling this September is about the pseudo-anime TV show Avatar: The Last Airbender. Nickelodeon says its recently-wrapped Season 3 finale was its highest-rated TV show ever and they want to carry on with a MMO and Live Action Hollywood Film!
M. Night Shyamalan is making a live-action movie called “The Last Airbender” based on the series, to debut in July 2010. With Avatar interest at an all-time high, Nickelodeon seems to have decided the time was right to make an MMO that serves as a “prequel” to the TV series.
More info can be found on l33tzone.com