His character could develop a sense of melancholy. As he travels through time, he witnesses the cyclical nature of pain and conflict in the Naruto world. He may start to question if there is any real way to break this cycle. However, instead of being defeated by this realization, he could use it to fuel his determination to create a better future. He might become more strategic, using his knowledge of future events to manipulate situations in the past in a way that will lead to a more positive future. For instance, he could try to prevent certain tragedies from occurring, which would not only change the future but also change him as a person, making him more confident in his ability to make a difference.
During the seventh time travel, Naruto could develop a deeper understanding of the power of friendship. Maybe he meets some old friends in a different context during his travels and realizes how important they are in a whole new way. For example, he might see how his friends' small actions in the past had a big impact on the future. This could make him more appreciative of them and also more determined to protect their relationships. He could also grow in his ninja skills as he has to adapt to different situations and opponents in the past, using his current knowledge to his advantage while also learning new techniques from the past.
Another possibility is Naruto traveling back to his own childhood days. He could mentor his younger self, teaching him advanced jutsu and wisdom he's gained over the years. This would make his younger self much stronger much earlier, and might also change how he interacts with Sasuke. For example, he could help his younger self better understand Sasuke's pain and prevent some of their earlier conflicts.
In many time travel fanfictions, Naruto's character develops a deeper understanding of the ninja world. When he travels back in time, he sees the events and people that shaped his present world. This new perspective makes him more mature and strategic. For instance, he may realize the importance of certain historical events that he took for granted before.
If Naruto changes something major in the past, it could disrupt the timeline. For example, if he prevents the Uchiha massacre, Sasuke's path would be completely different. He might not have the same drive for revenge, which could mean he doesn't leave Konoha. This would change Naruto's own growth as a ninja, as Sasuke was a big part of his motivation to get stronger.
As they travel through time, they would rely on each other more and more. For instance, when they are in a dangerous situation in the past, Naruto would protect Shion with his life, and Shion would use her powers to help Naruto find solutions. This mutual dependence would deepen their relationship, turning it from just acquaintances to true friends or maybe even more.
His sense of responsibility would likely increase exponentially. Since he now has the power to potentially change the past and shape the future, he would feel a great burden. This could lead to him becoming more of a strategic thinker, rather than just relying on his brute strength and determination. He would also have to deal with the moral implications of using his new powers, which would further shape his character.
In these fanfictions, Naruto often starts with his usual determined self. But as he travels through time, he has to adapt to the different social and political situations of the past. This makes him more cautious and strategic. For example, he can't just rush into battles like he might in his own time.
During the time travel, they might start off as just comrades on a strange adventure. But as they encounter various situations, like having to pose as a married couple to blend in during a certain era. This could lead to some comical and also heart - warming moments, gradually deepening their bond. They could also learn about each other's pasts and dreams more deeply, which would bring them closer together as they realize they have more in common than they thought.
One interesting plot twist could be that Naruto travels back in time and discovers that the Hidden Leaf Village was founded on a much darker secret than he ever knew. This changes his perception of the village's history and his role in it.
Shippo might become more self - reliant. When he travels through time, he may be separated from his friends. This would force him to rely on his own skills and intelligence to survive. For example, if he travels to a time where he doesn't know anyone, he has to figure out how to get food and shelter on his own.
Sarada's character often develops a greater sense of self - awareness during time travel. In the past, she may see how her family and the village were shaped, which gives her a new perspective on her own life. For example, if she sees her mother, Sakura, as a young and determined kunoichi, it might inspire her to be more like that. Also, she may become more resourceful as she has to adapt to the different ways of the past. She can't rely on the modern technology or some of the ninja tools she is used to in her own time.