As most of us know, there is a sequel to Avatar: The Last Airbender coming out with a new avatar as the star. If you haven't heard, well now you have and are probably as excited as I am. Anyway, it only takes place 75 years in the future from the first series. Now that seems like a long time for us, but in the Avatar world, people can easily live for over a hundred years which begs the question. What happened to Aang? Since he probably didn't die of natural causes, he must have been killed. Whether it was murder or a natural disaster, I don't know. They've already done a natural disaster with Roku so that's unlikely to be used again. If I really had to make a guess, I bet it's spirit world related. So let me hear your thoughts and speculations.