Naruto's view of himself and his purpose in life could also change. He might start to question his identity as the Jinchuuriki of the Nine - Tails. With new DNA - based powers, he could feel like he has a different role to play in the ninja world. He might explore new ways to use his powers for the greater good, which would be a significant development in his character.
Naruto's development would be exponential. His fighting style would change as he'd incorporate his father's jutsu knowledge. His emotional intelligence would also increase because of his mother's memories of handling relationships. He'd be more in control of his emotions and actions, not just acting on impulse like before.
One idea could be that Naruto gains new powers. For example, if his DNA was changed to have some Uchiha traits, he might be able to use Sharingan - like abilities. This could completely change the way he fights and strategizes in battles.
Naruto would likely become more self - reliant. Without his kind around, he can't rely on the traditional support system of his clan. So he has to figure things out on his own, which would make him grow up faster in some ways.
Naruto would likely become more independent. Without the support of his family, he'd have to rely on himself more. He might develop a tougher exterior and be more cautious about who he trusts.
Naruto's character would go through a major transformation. He'd lose some of his naivete and innocence. Instead, he'd become more cynical, but also more determined. He'd no longer take loyalty for granted and would be more cautious in his relationships. As he overcomes obstacles, he'd develop a new sense of identity that is not tied to his family's expectations.
Naruto's character could start off as a sad and lonely boy. However, his neglect could also fuel his creativity. He might come up with his own unique ways of doing things. As he faces challenges on his own, he'll build resilience. This will show in his actions and attitude. He won't be the typical Naruto who always has family support. Instead, he'll be a Naruto who has fought his way up from being overlooked and ignored, and this will give his character a whole new depth.
He would become more responsible. Naruto has always been a bit of a wild card, but with siblings to look after, he'd have to think twice before acting impulsively.
In fanfiction, if Naruto had Madara and Hashirama's DNA, his character development would be a wild ride. At first, he'd likely be confused by the new sensations and powers. As he explored them, he could discover new aspects of himself. He might start to show a more strategic side, like Madara, in battle, while still holding onto his core values of friendship and loyalty. His growth would be a struggle between the two legacies. He could even find a way to combine their different outlooks to create a new and unique ninja philosophy. This would not only change how he acts but also how others perceive him in the ninja world.
Naruto's character would likely become more complex. With the symbiote, he might start to question his own identity. Is he still just Naruto Uzumaki, or is he now something more? He could become more cautious as he has to deal with the new power and the potential risks it brings. For example, if the symbiote has a negative influence on his emotions, he would have to learn to control that.
Naruto's character development would be quite interesting. His relationships with his friends would change. Some might be jealous of his new power, while others would be worried for him. He would have to constantly balance his old ninja self with this new aspect of having a kagune. He'd also have to deal with the fact that the kagune might have its own will or instincts, and he'd need to assert his own will over it. This inner struggle could lead to a more nuanced and mature Naruto.