Looking around the board, it seems that many people -think- that the 3 book is the final one. While this would make sense since the fire nation seige seems so imminent, at the same time it doesn't. It just wouldn't seem right to have Water,Earth,(Fire or Wind) and that's it. I just can seem to imagine what the developers could possibly put together to make 2 more seasons. What do you guys think? Maybe there will be a long story -after- the fire nation attack.