It has been posted on the official account of Jenny Jue. She would be risking her career if she was putting out casting calls without being authorized to do so.
It troubles me that this casting and filming is so late. The actors will look even older. I don't think they're planing a timeskip. Since the second season starts immediately after the south water tribe battle.
I don't expect the timeline of the Netflix series to match the animated series. They'll probably make the journey longer to account for actors aging.
I have doubts about this picture though, the gmail address is the first red flag, but there are others. To me, this is more likely to be fake than real.
BTW, even in the original series, Aang's voice actor aging was becoming a problem. He said on the podcast (Braving the Elements) that it's a good thing the show ended after season 3 because he was already straining and didn't have a 4th season in him. If it had come to that I think they'd probably recast him with a voice double, but it's a good thing it didn't come to that!
If it had come to that I think they'd probably recast him with a voice double, but it's a good thing it didn't come to that!
I'm also glad it didn't come to that. It was already a noticeable change when they had to find a new voice actor for Iroh, let alone when you need to replace the actor for the titular character. Not that I don't respect the work of Greg Baldwin of course, but for me Mako Iwamatsu was the one and only Uncle Iroh. It's a shame he wasn't able to complete his character's journey.
Regarding your doubts: this casting call has been posted on the official account of Jenny Jue. She would be risking her career if she was putting out casting calls without being authorized to do so.
They are trying to check the disability box while also needing an out for when they choose someone who can actually do the physical aspect. (Yes, a blind person could probably manage on their own, but if you need to choreograph with other people, it might get complicated...that being said, I would love if the actual actress was blind and successful in the role, that would be super cool)