I just watched them and I loved them. The voices for the main bad guy is a little weird. You'd expect something more Avatar Roku, but that's literally the only thing I can complain about. Otherwise, the new character additions have been great.
The action, though, has been superb. It's been choreographed so well, but even better is the fact that they have already shown advanced techniques of bending we haven't seen before. And that's what truly excites me. If they are already showing new techniques, then what'll happen when they face the Avatar or even better, combine them?
Anyway, the two week break is cool, but I can't wait to see Zuko tear some **** up.