If Aizen time travels, his character could develop a sense of regret. Maybe seeing the destruction he caused in the future makes him want to change his ways in the past. He might become more empathetic towards others as he realizes the full impact of his actions.
He could become even more power - hungry. After seeing different time periods and the potential for more power, he may double down on his efforts to gain ultimate control. His character could also become more calculating as he has to factor in the changes in time and how they affect his plans. For example, he'd need to be careful not to disrupt the timeline too much in a way that would prevent him from achieving his goals.
He might become more empathetic. Seeing the past versions of characters he once used or manipulated could make him question his own motives. He could start to value relationships more, rather than just seeing people as pawns in his grand scheme. For example, he might try to protect characters he previously endangered during his time - traveling adventures.
If Levi travels back in time, his character could develop more compassion earlier. In the original timeline, he had to go through a lot of hardships to become more empathetic towards his comrades. But if he goes back, knowing what he knows now, he might start showing more care from the beginning. For example, he could be more patient with new recruits instead of his usual tough - love approach.
If Tsunade time travels, she might become more cautious. Seeing the past mistakes of the village, she'd be more careful in making decisions in the present. For example, if she saw how a certain policy led to problems in the past, she'd oppose similar ones in her own time.
Sarada's character might develop a greater sense of empathy. When she travels back in time, she sees the struggles and hardships of the past. For instance, if she goes back to a time when the village was recovering from a great war, she would understand the sacrifices made by previous generations. This newfound understanding could make her more empathetic towards others in her own time as well. Also, she could become more confident in her abilities as she has to adapt to a different environment and challenges during her time - travel journey.
He would likely be more confident. Since he grew up without parents in the original story, saving them would give him a sense of security and a more stable family background. This could make him less impulsive in his actions as he wouldn't have the same insecurities driving him.
If Anakin time travels, his character could become more self - aware. He might see the mistakes he made in his original timeline and become more cautious. For example, if he travels back to a time before his relationship with Padmé started, he could handle his emotions better and not let his fear of losing her drive him to the dark side.
Naruto would likely become more diplomatic. As an emperor, he can't just rely on brute force like he sometimes did as a ninja. He'd have to think about the long - term consequences of his actions for the whole empire. So, he'd develop better negotiation skills.
She would be more confident. Since she has the knowledge of her future self, she would know her potential and not doubt herself as much as she did when she was a genin originally. For example, she would be more assertive in battles and in her interactions with her teammates.
In a time - travel scenario, Sasuke could learn from different eras. Say he travels to a time of great peace in the ninja world. He would be exposed to different values and ways of life, which could soften his cold exterior. He might start to value friendship and cooperation more, as he sees how effective they are in maintaining peace.
Naruto's character development would be drastically different. Normally, Naruto grew up lonely and had to fight hard for recognition. But in this time - travel godlike scenario, he has the power to change things from the start. He might become more of a mentor - like figure earlier on. For example, he could start teaching his younger self or other young ninjas new techniques. His view of the world would also change as he'd see the long - term consequences of actions more clearly. He may be less forgiving towards those who cause harm, knowing the full extent of the damage they can do in the future.