I thought for sure it was gonna be Iroh, but now that hes been captured it could really be anyone.

Just because Iroh is imprisoned doesn't mean he won't escape. He's pretty clever.

As an alternative, however, maybe Aang and Co will run into Jeong Jeong again, though this is unlikely...

who knows. i am just glad that they got out of there with their lives. and 2 months to go to the solar eclipse.

Aang's coming back to liberate Ba Sing Se. There's no way they win the war without him. He should have some earth military backup here. Zuko will turn on Azula, Iroh will be very, very crafty.

this is what i said on some other topic...

Great chemistry between Aang and Iroh, this will lead them to rescue him and Iroh will gladly help Aang how to be a disciplined and great firebender. Although we already knew he would be willing to be his teacher, what Zuko did gave the viewers a great reason for Iroh to be the firebending instructor. if its him...

It's up in the air...but after Zuko's latest stunt(whether legit or a farce) has destroyed any shred of trust Katara or Aang had(btw Sokka would NEVER trust Zuko even if he did go legit)...so thats a low possibility for happening...

I think Iroh will be Aang's firebending teacher.