One idea could be a story where the two teams compete in a friendly but intense tournament. They might face challenges that test their bending skills in new ways.
By creating unique and unexpected plot twists. For example, if one team believes the other is an enemy at first but later discovers they are all on the same side against a greater threat.
Sakura would be heartbroken. She'd likely spend hours upon hours by Naruto's side, trying to jog his memory with stories of their adventures together. She might even get a bit overbearing in her attempts. Sasuke, who has his own complex relationship with Naruto, would be conflicted. He'd see Naruto's forgetfulness as a sign of weakness at first but then realize the importance of their bond. Kakashi, being the experienced leader, would start by observing Naruto carefully to see exactly how much he has forgotten and then start a systematic process of helping him remember.
Sasuke would likely be devastated. Despite their past differences, Naruto was his rival and in a way, his closest friend. He might go into a deep state of regret and isolation. Sakura would be heart - broken. She loved Naruto, and his death would be a huge blow to her. She might become more withdrawn and focus all her energy on her medical ninjutsu. Kakashi would be filled with a sense of failure. He was Naruto's teacher, and he would feel responsible for not being able to protect him.
Sasuke might initially be indifferent on the surface, but deep down he would feel a sense of loss. He has always had a rivalry with Naruto, and Naruto's departure would mean an end to that dynamic. Sakura would be devastated. She has grown to care about Naruto as a friend and teammate, and his leaving would leave a big hole in the team.
Well, Sasuke might initially be a bit shocked but then he'd try to hide his concern. Sakura would be very empathetic and might immediately want to do something to help Naruto. Kakashi, being the experienced one, would take a more calm and strategic approach to deal with Naruto's situation and protect him from further abuse.
They would be shocked at first. Minato would be filled with pride and joy seeing his son all grown up. Kakashi would respect Naruto's strength. Obito might be a bit envious of Naruto's popularity but also admire his spirit. Rin would be very friendly towards Naruto.
If Naruto joined Team Avatar, there would be a lot of chaos at first. Naruto's boisterous and head - strong personality might clash with some of the more reserved members of Team Avatar like Katara. However, his determination and never - give - up attitude would inspire the team. His unique jutsu, like the Rasengan, could be used in creative ways against their enemies. He could also learn a great deal from the bending arts, perhaps even finding a way to combine his chakra - based techniques with bending.
She could bring a whole new dynamic. Her powerful firebending skills would be a great asset. But also, her complex personality might cause some internal conflicts within the team as they'd have to learn to trust her, given her past actions.
If Naruto joins Team Avatar in fanfiction, it could lead to some really interesting dynamics. Naruto's boisterous and determined personality would contrast with the existing members of Team Avatar. He might teach them some of his ninja techniques, like the Shadow Clone Jutsu. And he could also learn a great deal from the bending abilities of Team Avatar members. Maybe he'd be especially intrigued by Aang's airbending, as it has some similarities to his own agility in combat.