Five hundred years has pasted since the time of Korra, since that time, we have gone beyond that which we once knew to be the world. Korra was the last avatar, she passed away 230 years ago.

I am Avatar Kelin, and my time is growing short, my destiny ends, when we make are first contact.

The time when the Avatar kept peace and balance in the world has pasted. Now, the Avatar must keep peace in a galaxy at war, or it will be consumed.

This is a idea i had floating around in my head. Since unlike most fantasy worlds Avatar keeps advancing technologically i can see this happening. First chapter will be short but there will be action in the chapter after that.