Aang- The only reason he found that he was the avatar at the young age of 12 was because the monks wanted him to train in case the fire nation attacked. Then he tried to run away and got trapped in the ice for 100 years. If the war never happened, he would live his life regular until he reached the age of 16. He is more mature and understands that he must leave Gyatso to train in the Eastern Air Temple.
Katara- She is a regular girl who lives with her father, mother, grangran, and her grangran's friend Hama.
Sokka- Like his father, he becomes a warrior and when he gets older decides to move to the North. Saying goodbye is hard, but he meets the chief's daughter Yue and marries her. When the chief passes away he becomes Chief of The Northern Water Tribe.
Azulon- He wouldn't be killed by Ozai, so he would live for a few more years and die of natural causes.
Ursa- She would never run away and is still stuck in a marriage with a chaotic man. On the bright side, she is able to watch her beloved son, Zuko, grow up.
Ozai- He doesn't become fire lord and is still jealous of Iroh. He attempts to have Iroh and Lu Ten killed but fails and then he's thrown in jail for the rest of his life
Iroh- He becomes fire lord and lives a happy life with his son Lu Ten by his side. He also doesn't become the peaceful carefree Iroh we all know and love.
Zuko- He lives in lavish royalty with his mother and sister. He never gets scarred and doesn't become good.
Azula- She is still the evil maniacal person we all know and hate. She still has her friends and grows higher and higher in the ranks of the fire nation army.
