Well, i hope to hear lots of コメント from あなた guys!
Here is what I think will happen,
Zuko's father, Ozai, will tell Zuko about his mother. Then, he will get mad at Azula, because, Azula knows something, または knew something but kept it from Zuko. But, then Aang puts his hand on Zuko's shoulder and says, We should go.
So, they leave off in 検索 of Zuko's mother.
What do あなた think will happen?