I had no idea interest would spark up this quickly. I think maybe we should let one more person in (for a total of six), and see what we think from there. And I'd be more than thrilled to have the four of you in!
Things I feel need to be discussed:
Time period: I was thinking maybe 150 years after the end of the series? That would explain the reappearance of Airbenders...
Worldwide Events: Such as another war, globalization, industrialization, etc....
Plot: Honestly, I don't have too much of an idea. I wouldn't mind the thought of another war springing up, but, it's very much open for discussion.
Bending: It could very easily be an evolving art, such as Toph's metal bending, or like Carmen's character, the sand-bender. I've given thought to an idea -- in very rare circumstances, a person may be able to master two forms of bending, after years and YEARS of practice. If any character were to be able to bend more than one element ( and not be the Avatar) they'd have to be very, very old. Thoughts on this? Also, new forms of bending being "discovered", such as Blood-Bending and Metal-Bending (best examples I can think of...) seem plausible to me. What do you guys think?
The Avatar: Personally, I don't think we should have him/her as a member, but as a character that is mentioned, at the most.
And of course, there are tons of other little things that I don't think are as important, (such as the existence of Flying Bison) but if you guys think of anything, please, let me know!
As stated, so far, we've got the four of you who have replied, and myself. One more person who expresses interest can join, for now.
Another thought: There could be some more plausibility in the number of Air Nomads, and even possible "Dual Benders" if one takes in account Energy Bending.(Aang used it to take away Ozai's bending, there's no reason it couldn't work in reverse.) Just a thought.