Avatar The Legend of Korra has no definitive scheduled release date. The last most reliable release date given was Mid 2012, but there is also speculation of an early 2013 launch.
Let's hope for a mid 2012 Avatar The Legend of Korra Release Date!
[caption id="attachment_4652" align="aligncenter" width="300" caption="Avatar The Legend of Korra Release date is likely mid 2012"][/caption]