Since Greed realized all he really wants are friends LMAO he will probably be okay with Ling becoming emperor of Xing. If it does happen, that is, which it better! How funny, I used to hate Ling :D
And Roy was really impressive. He's already adapting very well to fighting without his vision, mostly thanks to Hawkeye, but with some practice he could really become a force to be reckoned with. I only hope he stays blind. An 'all around happy end' would just rub me the wrong way. I can see Al coming back and Hohenheim passing on, so just keep Roy blind plz.