Are they going to change the story, maybe bring in Toph earlier or give us more Azula? I wouldn't mind a few changes here and there, I suppose.
Ehh, I'm not really into the idea of introducing Season 2 characters early. I think that the only character who could work with something like that is Azula, because she was set up pretty well in Season 1 by being mentioned by other characters or appearing in flashbacks. I'd like it if Azula/Toph did appear in Season 1, that they would not directly meet Team Avatar until Season 2. If I had a preference to who could be introduced in Season 1, maybe we could have the Rough Rinos be in the Jet episode.
The main thing that I'm afraid that they'll do with the show is try to make political statements with it, which I cannot stand because it is rarely set up well.
Also, my other fear is bad cgi. Series of Unfortunate events has given me a health fear of the...quality of Netflix's special effects.