The Last Airbender: Legend of Korra
'The Last Airbender: Legend of Korra' is a spin-off of 'Avatar: The Last Airbender' and is expected to air on Nickelodeon in mid-2012. The series is currently under production, and is expected to run for 2 seasons, a total of 26 episodes.
When I first heard there was going to be an Avatar spin-off series I was a little disappointed that the creative team behind the original weren't putting their talents to something completely fresh. However, having seen the teaser and a good number of stills my concerns have been put to rest. I'm sure there will be plenty of what made the original series so good, with the occasional familiar face cropping up from time to time, but the new series will take place 70 years after the end of the 'Avatar: The Last Airbender' story arc, in a far more modern setting, which I imagine will help to give Korra’s story a very different feel from Aang’s.