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.
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.
One possible plot could be that Naruto's new doujutsu gives him the ability to see the chakra flow in a more detailed way. This would enhance his combat skills as he could predict his opponents' moves better. He might also use it to understand the nature of different jutsus more clearly.
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.
Well, if Kami gives Naruto a bloodline in fanfiction, it could completely transform his abilities. He might gain powers that are way more unique and powerful than his normal jutsu. For example, he could have some sort of elemental bloodline that allows him to control a new type of energy. This would make him even more of a force to be reckoned with in battles against tough opponents like Sasuke or the Akatsuki members.
It could be a doujutsu that allows him to see the future in fragments. So he can get glimpses of his opponents' next moves or potential threats in the near future.
The villagers' attitude towards Naruto would shift. They have come to see Naruto as a symbol of hope and a powerful ninja. If he gives up, some might be disappointed, while others who were always a bit jealous or suspicious of him might feel vindicated. His friends among the villagers, like Shikamaru or Choji, would be sad to see him go from the ninja life but would still try to maintain their friendship with him in a different context.
The symbiote could make Naruto's ninja way more about adaptation. Since the symbiote brings new physical abilities, Naruto might need to adapt his fighting style. His ninja way of never giving up could be enhanced as he now has to overcome not only his normal challenges but also the challenges of controlling the symbiote. For example, if the symbiote has a weakness to certain elements, Naruto would have to find ways to work around that while still staying true to his beliefs.
Naruto's relationship with his sensei, like Kakashi, would also change. Kakashi would be extremely vigilant and try to train Naruto to control the Sephiroth - like powers. He might also be researching about this strange phenomenon. As for his friends in the village, some might be afraid of him, while others might see it as an opportunity for the village to become stronger. But overall, Naruto would feel a bit isolated as he's different now.
His relationships would change a great deal. He'd probably form a father - son type of bond with the Raikage. With the other Cloud ninjas, he'd start as an outsider but gradually earn their respect through his skills and determination. His relationship with his friends in Konoha might become more complex as he now has a new allegiance to the Hidden Cloud.
In this fanfiction, Naruto's relationships would be transformed. With his old friends like Sakura, she might be both scared and curious about his dragon form. Naruto would also have to form new relationships with dragons. Some dragons might be hostile towards him because he was once a human. But he could also find some dragon friends who accept him for who he is. His relationship with his sensei, like Kakashi, could also change as Kakashi has to deal with Naruto's new identity and powers.