OMGosh! I JUST looked at the screen captures for the opening of the show and if you look really closely you can see THAT THE AIRBENDER HAS A BEARD!! That is SO not Aang! You know who I bet it is? I bet it's Afiko...the betrayer. He's the one who gave away the Southern Air Temples location to the Fire Lord 100 years ago! He is bald and has a beard! I bet they put that in there thinking that WE'D think it's Aang but really it's somone from Aang's past! Look closely and you'll see
heres some stuff i found out about him
Afiko, an elder Airbender monk of the Southern Air Temple, grew jealous when his peers announced Aang's identity as the Avatar. Envious, he turned traitor and revealed the temple's location to the Fire Nation. They stormed the temple and slaughtered the other monks, but were too late to catch Aang, who had run away from home shortly before. Afiko was instrumental in engineering the genocide of his fellow Air Nomads, earning a place as Fire Lord Sozin's close advisor. The traitorous monk died long before Aang's return, and the subsequent undermining of all Afiko's work.