So this is what they mean by the word remake. But if your really a fan of TLA, and trying to look for something different watch it.
Zuko and iroh story is good some scenes are worth remaking but some are aren't.
For me the plot lacks something I can't put my finger on it but surely something is lacking. Some stories needs more like the freedom fighters, omashu, and kinda disappointed about the inventor it would play a big role if the put them in the original place like in the animation since it will give aang a new perspective.
Waterbending plot between paku and katara they should have take the same as the animation.
About the casting on mei and azula they don't have the same finesse and the character doesn't suit them.