https://www.reddit.com/r/TheLastAirbender/comments/1iu1vac
Details:
The new 2D animated series will consist of 26 half-hour episodes spread across two seasons, or Books 1 & 2 in “Avatar” style. News of the pickup comes as “Last Airbender” prepares to celebrate its 20th anniversary, with the original show having debuted on Feb. 21, 2005.
“Seven Havens” hails from “Avatar” creators Michael DiMartino and Bryan Konietzko under the Avatar Studios banner from Nickelodeon Animation in Burbank. It is currently in production.
Logline: “A world shattered by a devastating cataclysm. A young Earthbender discovers she’s the new Avatar after Korra – but in this dangerous era, that title marks her as humanity’s destroyer, not its savior. Hunted by both human and spirit enemies, she and her long-lost twin must uncover their mysterious origins and save the Seven Havens before civilization’s last strongholds collapse.”