Aang might become more confident. After the war, he has proven himself as the Avatar and might be more self - assured in his decisions. Katara could become more diplomatic. With the experience of the war and seeing different cultures interact, she may use her skills to help resolve disputes between tribes or nations.
Aang would contribute to the post - war world in fanfiction by teaching the values of the Air Nomads, like non - violence and respect for all life. This would influence the new generation. Katara, being a powerful waterbender, could help with environmental restoration. For example, she could use her waterbending to clean polluted water sources. They would also be involved in diplomatic efforts, as aang's connection to the spirit world and Katara's wisdom would make them great mediators between different groups. Their relationship would also inspire others to work towards a united world.
Their relationship could deepen as they share in the joys and sorrows of rebuilding the world. They've been through a lot during the war, and now they can truly rely on each other. They might become even closer friends at first, with a mutual respect for each other's abilities growing stronger.
In some cases, the anger could be a catalyst for a more romantic development. Aang expressing his strong emotions might make Katara realize the depth of his feelings for her. Or it could be the other way around, Katara's reaction to his anger could make Aang see her in a new light, leading to a shift in their relationship dynamic towards a more romantic one.
They could travel together. Aang, being the Avatar, may still have duties to different parts of the world. Katara, with her skills and their strong bond, would accompany him. They would use this time to not only help the world recover but also strengthen their relationship as they face new challenges and adventures in different lands.
The kids would likely be very kind - hearted like Aang. Aang was always about peace and helping others, so his kids would probably inherit that trait. They might also have Katara's strong will. Katara was never one to back down when she believed in something, and the kids would have that determination too. For example, if there was an injustice in their village, they would be the first to stand up and try to make it right, using both their air and water bending powers.
Aang might go into a deep state of depression. He has always been an emotional character, and having his heart broken by Katara, someone he loves deeply, could send him into a downward spiral. He might isolate himself from his friends and stop practicing his bending for a while.
Katara could be heartbroken. She might initially be in denial, not believing that Aang has actually left. Then she could become angry, feeling betrayed by Aang's sudden departure.
Draco might become more humble. After experiencing the horrors of the war and the fall of his family's pure - blood ideology, he realizes the error of his ways. He becomes less arrogant and more open - minded. Hermione, on the other hand, could be more forgiving. She has seen so much death and destruction that she decides to let go of some of her past grudges, including those against Draco.
Hawkeye might become more serious. After seeing so much during the war, he could lose some of his carefree attitude. He might be more focused on making a real difference in the post - war world. Margaret, on the other hand, could become more empathetic. The war has shown her different sides of people, and she might be more understanding towards others.
Harry could develop a more peaceful side to his personality. He's seen enough death and destruction, so he focuses on promoting harmony in the wizarding world. Hermione may change in her approach to magic. Instead of just relying on book knowledge, she starts to experiment more, using her creativity. This change in their personalities can lead to new adventures and a different kind of relationship between them in fanfiction, whether it's a stronger friendship, a romantic relationship, or a partnership in making the wizarding world better.