Xemnas is going to be participating in Darkness activities. I think. At least, he'll be around for that long until he either dies, returns home, stays to see things end (because ENDINGS?), or goes elsewhere. I haven't fully decided on his fate, but I'm open to doing any of these things.

Hiccup will be saying good bye to friends unless something sidetracks him from heading back home right away. Probably all the fighting and protecting of portals. I was going to have something terrible happen to him too, but hmm.