Looks like an animated sequel is in the making for Avatar: The Last Airbender.

It'll take place 70 years after Airbender

Pretty excited about this, particularly with all the negative live-action drama pissing on the cartoon.

You can find some rumors here, and with Comic-Con starting soon more details should come forward:
http://avatar.wikia.com/wiki/Avatar:_Legend_of_Korra
http://www.cleveland.com/tv/index.ss...sequel_to.html