These are just my predictions for the avatar finale and the titles of 318-321. The titles are NOT OFFICIAL, and are just what I think they'll be.

318: The Fire Lady (or) Firelord Azula.

In this episode I think it'll just be a prolouge like 219, 119, 310 and so on. Azula of course is angry, so somehow I'm guessing in this episode ozai appoints azula to becoming firelord. Zuko and the gang meet june once again, and zuko asks june to help him locate his mother. At the end, they finally locate ursa, and mai and ty lee escape from the boiling rock and join the gang sometime in the episode. And some brief confrontations with some firebenders as well. Nothing to major. And probably a coronation for azula as well. Also, the day of black sun prisoners I think will escape from the fire nation as well in this episode, and come up with a plan. This episode is written by Michael Di Dimartino. (From Dongbu Feng)

319: "The Phoenix Lord"

This episode I believe is written by Aaron Ehase. He has written 107, and 120, so I believe it'll be about the spirit world and Koh making an appearance in this episode. Aang will probably learn more about the avatar state and master it. Then the gang run into azula, and a showdown commenses. At the end of this episode, Azula battles aang in the avatar state for a brief time and then zuko defeats her by using his lightning technique. Before azula passes away, she laughs and says the gang will fail and that ozai is being appointed phoenix lord. Then the gang turn around and see the comet approaching. Azula says they failed to defeat the fire lord before the comet arrived. She laughs once more, and then passes away. The episode ends with ozai becoming phoenix lord and the comet coming toward earth. (Also Iroh will probably return within this episode since it is probably about the spirit world, trying to ignore what the creators said about it at comic con.

320: "Sozin's comet"

Now things are really heating up. A full-out war begins now. During this episode I think all of the shippings such as kataang and so forth will be brought up in this episode. Aang says he has to fight ozai alone and tells Katara that he might have to let her go in order to use the avatar state. Aang leaves and meets ozai for the first time, and prepares for battle. At the very end of this episode, the comet finally reaches earth, giving the firebenders there power. Aang and ozai then begin there fire duel.

321: "The Final Battle"

Aang fights ozai alone, then after a while as ozai is about to finish off aang, zuko and the others appear. Then they all fight ozai. As ozai is also about to finish off zuko, iroh risks his life, saving zuko. This is the episode i think that iroh will sacrifice his life in saving zuko. Aang then goes into the avatar state, defeating ozai. After the defeat of ozai, there will probably be a funeral for iroh, and aang kissing katara at the end (Sorry zutarians) then a celebration. As for the firebenders, I think there will be a truce, and the world won't be divided into four nations anymore. The world will become one.

Again, this is not official, and is just speculation.

Wait a second, could June use her Shirshu to find Ursa? That could totally work! I never connected those two.

I stress 'totally' and 'a'.

Do you realize that Mike and Bryan, including the episode you just mentioned, have written only TWO episodes in S3? Wth?

I really hope they at least wrote the final two episodes. S1 definitely is shaping up to be my favorite of the entire series thus far without seeing the finale as of yet of course.

Hmmm...interesting predictions!

However, next time direct your specualtions here : Official Avatar News Tracker & Speculation Thread

Oh come on, can you people give it a rest? So what if the guy makes useless threads. He/she has an opinion here like everyone else and they're just as excited about the finale as we are. And you're just as guilty replying in these threads as you are posting them.

As for the OP's predictions, i think they are really thought out and thorough. Just dont be surprised if Bryke throws you a curve ball as they have done so many times in the past.