As we all noticed, at some point before the finale, the Gang will stay at Ember Island. Just putting this out as a theory, what if they were to stay in that abandoned royal Summer Home from 305?
In the trailer we see,
- Aang meditating on a balcony overlooking the sea, like the Beach House had.
- Aang attempting to kiss Katara on a similar balcony overlooking the sea.
- Azula standing in front of some type of burning structure.
- Aang standing in front of (what resembles) a burning archway. (Like the one on the Beach House's porch.)
- I really don't think they have any other allies who would willingly shelter them on Ember Island. (Unless Iroh or Ursa suddenly appear.)