Okay, so I haven't read the Sozin's commit book, but I know the basics that Zuko saves Katara, Katara heals him, and Kataang and Maiko prevail. At least that's what I've been told.

My reactions are these:
1. The whole Zuko/Katara thing is like the most clichéd seventh grade fanfiction thing ever. I mean, this ranks at about the same level as the final chapter of the last Harry Potter book in my opinion. I would have liked to see something I haven't read a hundred times in fics.

And this is me speaking as a Zutran.

2. Even though I ship Zutara, I'm cool with Maiko. I mean, there's no weirdness with the ages and Mai's a pretty cool character.

3. I have decided that the whole Zutara outlook must now be different. It's kind of like Casablanca. You know Ilse really loves Rick more, but she has to go with her husband because he's going to change the world, and he needs her. Yeah, I'm going with that. Actually, it works out.

I think the last few episodes will show a deep connection between Zuko and Katara. They are these two warriors who keep circling each other and are the two biggest factors in the success or failure of the Avatar.

I'm sticking with that.