Hello Avatar Community!
My name is Jakob and I am head of Two Tone Games, a small indie developer that has yet to release a title.
As a side project to our current project, and because of a lack of support by the community of our previous project, we have decided to take on the task of making an RPG out of the Avatar series. It will be developed using our proprietary SinsRPG engine, and RPG engine similar to that used in the Tales series of games (this means 4-player co-op).
As this is a side project and not for profit (essentially for a loss, as we will of course not be charging anything for the game), we welcome any community involvement in the project. Spriting, area/enemy/puzzle design, and art/music/sound design can all be done by the general Avatar fan community (and will be done by someone on our team otherwise). Programming work will be handled by me and possibly another on the team.
Updates in the progress of the game will be released at our (mostly my) blog at http://two-tone-games.blogspot.com/. When a video is released showing the game, it will be noted on the blog but posted at our YouTube page at http://www.youtube.com/user/TwoToneGames.
Also, to avoid further confusion, this RPG is based on the original series, NOT Legend of Korra.
EDIT: If you wish to contact us by email, you can reach us at twotonegames (at) gmail (dot) com.