It could make him more in tune with his Uzumaki heritage.
She might encounter Naruto's hidden fears and help him face them. Maybe she'll discover memories Naruto has forgotten or suppressed.
He might be more confident from the start. Knowing he is related to such a powerful figure like Mito Uzumaki could give him a sense of pride and purpose early on. His development might focus more on mastering the Uzumaki clan's techniques rather than just trying to be recognized in the village.
Their presence could greatly enhance Naruto's growth. Just having the connection with his parents in the mindscape could give him a sense of belonging and purpose. His father was a highly skilled ninja, and he could pass on some of his combat knowledge and strategies. His mother, with her kind heart, could help Naruto develop his emotional intelligence, which is important for a ninja in dealing with allies and enemies alike.
His personality might be more confident. Mito was a strong - willed woman, and growing up under her care, Naruto would likely absorb some of that confidence. He'd probably be less of a prankster as he'd be more focused on learning the Uzumaki ways.
Naruto would probably be in awe of Mito at first. Mito, on the other hand, would see Naruto as a worthy successor of the Uzumaki clan. They might start by sharing stories of their respective times. Naruto would tell Mito about the modern ninja world, and Mito would share tales of the Uzumaki clan's origin and its past glories.
Naruto would likely become more confident. Knowing he has a clan that accepts him would boost his self - esteem. He might not be as much of an outcast as in the original story, and this could lead to a less boisterous personality, as he doesn't have to constantly seek attention to be noticed.
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.
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.
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.
If Naruto travels back to meet Mito, their relationship would be complex. Naruto, coming from a different time, would have different knowledge and experiences. Mito might initially be skeptical of him but later come to trust him as they work towards a common goal.