His relationship with Sasuke could change significantly. With the new doujutsu, Naruto might be able to understand Sasuke's motives better or even be able to sense when Sasuke is in danger from afar, leading to more protective or empathetic interactions.
His bond with his teachers, like Kakashi, could also evolve. Kakashi might help Naruto train to master the doujutsu, and in the process, their teacher - student relationship could become even stronger as they face new challenges together.
His relationship with the older generations like Kakashi and Tsunade could shift. They would see Naruto as a more mature and capable ninja. Naruto could use the insights from his doujutsu to contribute more to the decision - making in the village, and they would respect his opinions more.
His relationship with Sasuke would likely be affected. Sasuke might initially be suspicious of Naruto's new form, thinking it could be a trick by an enemy. But as time goes on, they could find new ways to work together. Naruto's new Kitsune powers could complement Sasuke's skills. For example, Naruto could use his enhanced speed as a Kitsune to keep up with Sasuke in combat.
His relationship with Sakura might change. Sakura would be even more impressed with Naruto having this new power. She might see him as an even greater ninja and could potentially develop stronger feelings for him. Naruto, on the other hand, might use his telekinesis to do small things for Sakura, like picking flowers for her without having to touch them.
The doujutsu from kami might also grant Naruto new offensive capabilities. It could potentially allow him to use some sort of energy projection or manipulation that is unique to this doujutsu. For example, he could fire beams of spiritual energy that can disrupt an opponent's chakra system.
If Naruto gets de - aged, his friends would likely become very protective of him. For example, Sasuke might feel a stronger sense of responsibility to keep Naruto safe, since Naruto is now in a more vulnerable state. Sakura would probably mother him a bit, making sure he eats well and studies hard at the academy. His friends' perception of him would shift from seeing him as an equal or even a leader in some cases, to seeing him as someone who needs their care and guidance.
Naruto's relationship with his friends in the Hidden Leaf Village would also change. Some might be in awe of his new power, while others might be a bit afraid. For example, Sakura might be worried that the Mangekyou Sharingan could change Naruto's personality. Naruto would have to reassure them that he's still the same person. And he might also use his new power to protect them more effectively, strengthening their bond.
Naruto's relationship with his mentor, Kakashi, would also change. Kakashi would be more vigilant, watching over Naruto to make sure he doesn't lose control of the Earth Grudge Fear. He would train Naruto to better understand and manage the power. Naruto would look to Kakashi for guidance, but at the same time, he might feel a bit of a strain in their relationship as he becomes more independent with this new power.
Well, having a doujutsu bloodline would be a huge game - changer for Naruto. His ninjutsu might be affected too. For example, he could combine his Rasengan with the unique vision of the doujutsu. Maybe he could use it to target the chakra points of his enemies more precisely, just like how Gentle Fist users do with their Byakugan - like vision. Also, his stealth and reconnaissance abilities would be much better, as he could see from a distance or in the dark with the doujutsu.
As for his relationship with the rest of the village, some might be suspicious at first. The Sharingan has been associated with the Uchiha clan, which has had some dark moments. But as Naruto shows that he can use the power for good, they would gradually accept it. However, there would always be some who are wary, which could create some interesting social dynamics in the village.
His relationship with Sasuke would be very different. Sasuke might be both jealous and intrigued that Naruto now has an Uchiha power. They could become more equal in terms of power, which might lead to a more competitive but also more collaborative friendship. Naruto could also use the Sharingan to understand Sasuke's pain better, seeing the memories of the Uchiha massacre through Sasuke's eyes.