The relationship between Naruto and the Uchiha clan would be different. In the original story, there was a lot of tension between Naruto's time and the Uchiha. But if he was the same age as Hiruzen, he might be in a position to prevent some of the tragedies that befell the Uchiha. He could be friends with the young Uchiha members at that time and work towards a more harmonious co - existence within the village.
His relationship with Sasuke would likely become more strained. Since Sasuke has his own complex feelings about Konoha, if Naruto is sick of it too, they might not see eye - to - eye on how to deal with the situation. Their bond which was once about protecting the village could be broken.
As for Kakashi, he would be in a difficult position. He has mentored Naruto and also has a strong loyalty to Konoha. He might try to understand Naruto's reasons while also having to deal with the village's reaction. Their relationship could become strained as Kakashi tries to balance his duties to the village and his connection with Naruto.
His relationships would become very complex. His friends in Konoha would be in shock. Naruto leaving Konoha for Kumo is like a slap in the face to them. They would wonder what drove him to such a decision. For example, Naruto had such a strong bond with Iruka - his first mentor. Iruka would be deeply saddened and would question if he had failed Naruto in some way. And Naruto's relationship with Kakashi would also take a hit. Kakashi would be worried about what this means for the future and how it could potentially lead to conflict between Konoha and Kumo.
With his family - like figures in Konoha, such as Iruka, the relationship would be put to the test. Iruka would probably be heartbroken but also hope that Naruto is doing what he thinks is right. In Iwa, Naruto might find a new mentor - like figure who could teach him different things compared to what he learned in Konoha. This new relationship could shape his ninja path in a whole new way.
His relationship with Sasuke would be severely affected. If Naruto is betrayed by Konoha and joins Kumo, Sasuke might see it as a sign of weakness or a wrong decision. Their rivalry could turn into something more complex, with Sasuke perhaps trying to bring Naruto back to Konoha or seeing him as an enemy. With his friends in Konoha like Sakura, there would be a lot of heartache. They might not understand his decision at first, but over time, some might come to realize the reasons behind it.
The relationship between Fem Naruto and Sasuke might be different. Sasuke might be more protective of her at first because she's a girl. And Fem Naruto might have to work harder to prove to Sasuke that she's just as strong. With Sakura, they could become closer friends as they might bond over girl - related things like fashion or gossiping about other students, while still having their ninja - related rivalries.
If the Konoha 12 saw the future, their relationships would be greatly affected. Naruto and Sasuke's bond might strengthen as they work together to avert future disasters. Sakura might become more understanding of Sasuke's actions in the future she saw. Shikamaru and Choji could start training together more intensively, preparing for what's to come.
With the villagers of Konoha, Naruto was once seen as a hero. But his leaving could cause mixed feelings. Some might see it as a betrayal, while others might respect his choice. Fem Sasuke was always an enigma in Konoha. Her leaving might be seen as expected by some, but for those who hoped she would fully integrate into the village, it would be disappointing. And as they journey outside Konoha, they will meet new characters, and their relationships with them will be based on their new identities as outcasts from Konoha.
His relationship with his friends in Konoha would be severely strained. They would likely feel hurt and confused by his sudden departure. On the other hand, in Kiri, he would have to build new relationships from scratch. He might initially be an outcast but gradually earn the respect of some Kiri ninjas.
The relationship with the Hokage would be altered too. If Naruto is Hanabi, he would be part of the Hyuga clan's dealings with the Hokage. Hanabi as Naruto would be in a position of great influence. The Hokage would expect her to act like Naruto, but she would bring her own Hyuga - influenced mindset to the role. This could cause both confusion and new opportunities for the village's leadership and decision - making processes.