Naruto might become more introverted. Without friends to interact with, he'd have to rely on himself more. He could develop a very independent streak, focusing on self - improvement in his ninja skills without the motivation of friendship. For example, he might train in solitude for long hours, becoming a very powerful but lonely ninja.
Naruto could develop into a more vengeful character at first. The continuous torture by the villagers might make him angry and want to get back at them. But as the story progresses, he might realize that revenge is not the answer and instead focus on making the village a better place for everyone, including himself.
Naruto would likely become more distrustful at first. He's always been so open and trusting of his friends, so this betrayal would shatter that. He might become more withdrawn, constantly second - guessing people's motives.
With the Jubbi, Naruto's understanding of the ninja world's darker secrets would expand. He might become more of a loner as he grapples with the implications of having such a powerful and feared entity within him. This would be a contrast to his normally sociable and team - oriented self. He would also face a lot of mistrust from others at first, which would make him more cynical, but eventually, he would strive to prove himself worthy of that power and regain people's trust.
Naruto's character might develop a deeper sense of self - awareness. With the Nine - Tails Cloak, he realizes he has a greater power and responsibility. He becomes more cautious in using it, understanding the consequences of losing control.
Naruto would likely become more studious. Instead of just relying on his natural energy and willpower, he'd have to spend time in labs and studying books. His impulsiveness might decrease as he learns the importance of precision in scientific work.
In the 'naruto omnipresense fanfic', Naruto's character development may also involve a new level of self - awareness. Being omnipresent makes him see himself from different perspectives. He realizes how his actions affect not only those directly in front of him but also those in far - flung corners of the ninja world. This new - found self - knowledge could lead to him making more calculated and wiser decisions in various situations.
If Naruto got Wolverine's power in fanfiction, his development would be really interesting. He'd have to learn to control the healing factor and not rely too much on it. His sense of self - worth might change as he realizes he has this new, extremely powerful ability. He might also become more of a loner in some ways, but still be part of the Konoha community. He could start to question his ninja way in the face of this new power, but ultimately find a way to incorporate it into his values.
Naruto might become more empathetic. Loving a demon means seeing things from a different perspective. He would learn to understand the outcasts more, as the demon is likely an outcast in the ninja world. This would make him more inclusive in his actions towards others who are different.
His character could become more mature. As a clan head, he has to think about the well - being of the whole clan, not just himself. This would force him to make tough decisions and grow in wisdom.
Naruto could become more introspective. When exposed to the Book of Life, he might start to question his own life and the lives of those around him more deeply. His usual brashness could be tempered as he realizes the complexity of destiny. For example, if he sees the true pain and sacrifice behind some of his enemies' actions through the book, he may become more empathetic and try to find peaceful solutions rather than just fighting.