In a Sarada meets past Sasuke fanfiction, it could be that Sarada has to keep her identity a secret at first. She might be on a mission in the past for some reason. As she observes past Sasuke, she could notice his skills and the way he interacts with others, like Naruto. This would give her a chance to understand the bond between her father and Naruto from a whole new perspective, which could be really interesting for the readers.
Sasuke's character could develop a deeper understanding of himself. By seeing his past self, he might realize the parts of him that he has lost or forgotten. This could lead to a more balanced Sasuke, less consumed by revenge.
Sarada could learn about Sasuke's past training methods directly from him. This would be a great opportunity for her to gain new skills or insights. She might see how Sasuke honed his Sharingan abilities in the past and try to apply some of those techniques to her own growth as a ninja.
In such a fanfiction, they might try to prevent some of the tragedies that occurred in their own time. For example, Naruto could stop the Uchiha massacre, saving Sasuke's family and potentially changing Sasuke's entire path. Sasuke, on the other hand, might use his knowledge to help the ninja world avoid future wars. They could also meet their younger selves and impart wisdom or skills that they learned in their original timeline.
In this type of fanfiction, the time travel might be a result of a forbidden scroll or an experiment by a rogue ninja. When Naruto and Sasuke go back in time, their relationship is different from what it was in their original time. The kiss could be a turning point where they start to understand their feelings for each other on a deeper level, perhaps realizing that their bond is stronger than just friendship or rivalry.
One possible plot twist could be that Sasuke, upon traveling to the past, accidentally changes a small event that has huge ramifications in the future. For example, he might prevent a key encounter that led to a character's development, and as a result, the entire power balance in the ninja world is altered. Another twist could be that Sasuke's presence in the past is somehow detected by an ancient and powerful force, which then tries to either use him or destroy him. Or perhaps, Sasuke discovers that his own past self is not as he remembered, and there are hidden motives or secrets that he was unaware of before.
Well, Sasuke might be shocked at first. He could see his younger self's naivete and it might make him re - evaluate his life choices. Maybe his past self would be in awe of his current power but also disappointed in the path he has taken.
One possible plot could be that future Sakura, with her advanced medical skills and battle experience, goes back in time and meets a younger Sasuke. She might try to prevent some of the tragedies that Sasuke later endures. For example, she could warn him about Orochimaru's true intentions, which would change the course of Sasuke's journey. This would also lead to different interactions between Sakura and Sasuke compared to the original story. Their relationship might develop in a more positive way earlier on, as Sakura from the future has a deeper understanding of Sasuke's pain and the consequences of his actions.
If Sasuke travels to the past, his relationships would be completely transformed. With his clan members, he would have a chance to interact with them in a new light. He might try to warn them about their impending doom, which could change the dynamic from one of normal family relations to one of him being a seer of sorts. Regarding Kakashi, Sasuke could either use his knowledge of Kakashi's teaching methods to his advantage or try to change how Kakashi trained him. And when it comes to his enemies in the past, like Orochimaru, Sasuke might approach him differently. He could try to avoid Orochimaru's influence altogether or try to turn Orochimaru into an ally against the greater threats that he now knows about from the future.
If they travel to the past, Naruto and Sasuke's relationship might change in several ways. They could start to see each other in a new light. For example, Naruto might see a more innocent Sasuke in the past and be even more determined to protect him. Sasuke could also see Naruto's growth from a different perspective and appreciate his friend more. Their bond could be less about revenge and more about mutual growth and protection as they navigate the past world together.