Culturally, Naruto's presence would have a huge impact. He would introduce ninja culture to the samurai. This could include things like ninja tools, jutsu, and the ninja way of life. At the same time, he would learn about the samurai code and their traditions. This cultural exchange could be a central theme in the fanfiction, with Naruto becoming a bridge between the two cultures.
Naruto's presence in the past could change a lot. For example, if he goes back to the time of the Third Great Ninja War, his powerful jutsu and modern combat knowledge could tip the balance of power in different battles. He might also be able to prevent some of the great losses that different ninja clans suffered, which would change the power dynamics in the ninja world. His positive attitude could also inspire a new way of thinking among the ninjas of that time.
In the fanfiction context, Naruto in modern Konoha would be a huge influence. His unique ninja abilities would be a source of fascination for the villagers. He might inspire the younger generation to take up the ninja way more seriously. Also, his own story of rising from an outcast to a hero could give hope to those who are struggling in the modern Konoha. He could also change the village's defense strategies by introducing some of his own battle - tested techniques.
He would change the power balance. His raw strength and speed could intimidate some opponents. And his strategic thinking would make him a tough opponent to plan against.
It could make him more in tune with his Uzumaki heritage.
Naruto's positive attitude and his belief in friendship might make Hashirama more open - minded. For example, if Hashirama was hesitant about an alliance, Naruto could convince him with his own experiences of forming bonds across clans.
He could start to bring some lightness to Gotham. His positive attitude might inspire some of the citizens. And his ability to swing around the city quickly could help with emergency rescues.
Shazam's presence would likely add a touch of naivete and innocence. He could be the one to question the League's more complex and sometimes morally gray decisions, adding a fresh perspective.
Regarding his relationship with the village elders, Naruto might be able to influence them more. As a retired ninja who has seen the future of the village, he could persuade them to make different decisions, like being more open - minded about new techniques or more inclusive towards certain clans. This would reshape the power dynamics and relationships within the village.
Minato's presence would likely make them closer. He'd encourage them to see each other as brothers. Since Minato is Naruto's father, Naruto would have more confidence and be more at ease, which would make Sasuke respect him more. They'd have a common figure to look up to and follow his teachings together.
Sakumo's presence could make Naruto more confident in his own abilities. Since Sakumo was a great ninja, his guidance could give Naruto new perspectives on his training. Naruto might also become more strategic in his battles, learning from Sakumo's combat experience.