I have another question though. what if.. korra loses the spiritual convergence. Does she get stuck in the tree for 5000 years or does Raava come leave her body? Also for Raava and Wan to become one, they had to touch the portal when it started right? That's what created the first avatar. Also Raava and Wan merging before that happened put a strain on Wan's body. I really hope the writers troll and just like troll Unalaak into being killed when he tries to merge with Vaatu. Vaatu doesn't seem very fusion friendly. So much things to think about.... I want to see the preview for next week's one hour episode but I can't find it...