Do we have any idea how the council is even formed? Where do these council members come from? The original council is obvious; they're the founders of the city. But what happened after Aang and Company left? Is there an election? Does one person appoint them (like the President and his Cabinet)? Does a retiring councilmen appoint his replacement?
There is a part of me that wishes this was more of an adult drama than a kid's cartoon. I would love to get into all these dirty details.