This is quoted directly from the same person who has brought us those interviews with Mike and Bryan on Avatarspirit.com:
"Folks, Mike and Bryan have just about guaranteed Zuko will be redeemed, but I also have their assurances Zuko has not fallen nearly as far as he will before all is said and done.?? To use yet another Star Wars analogy (someone stop me!), the entire 6 episode Star Wars saga is essentially the rise, fall, and redemption of Anakin Skywalker.?? Think how far HE fell before his redemption through the son he never even knew he had.?? He killed his wife (said son's mother), he allowed the destruction of entire worlds, but in the end he saved his son...and himself.?? I think this is a rough template for how Mike and Bryan are proceeding with Zuko, something you'll learn slightly more about once Part III of the interview is out and I can reflect on what I think it means.
Bottom line, those who empathize overly much with the Son of Ozai better fasten your seatbelts, you're in for one wild ride..."
I'm gonna take a wild guess and say:??Zuko fangirls, have your defibulators ready...