The main characters are Naruto and his comrades. Iruka, Naruto's first teacher, could be in it too. He has always been like a father figure to Naruto. In the fanfiction, he might be one of the first to notice something strange about Naruto's future. Then there are Naruto's other friends from the village like Kiba and Choji. They would all react differently to seeing Naruto's future. Kiba might be more impulsive in his actions to change it, while Choji might be more cautious but still determined to help Naruto have a better future.
In the 'everyone sees naruto's future fanfiction', it could be that they see Naruto's future self as being too powerful for his own good. He might be on a path that leads to him being isolated because of his strength. His friends then would strive to guide him onto a different path, one where he can still be strong but also maintain his relationships.
One common theme is self - discovery. When Naruto sees the future, he often has to re - evaluate who he is and what his purpose is. Another theme is sacrifice. He may see a future where he has to sacrifice something dear to him to save others. And of course, there's the theme of fate. He might struggle with whether the future he sees is set in stone or if he can change it.
Well, in a fanfiction where everyone sees Naruto's memories, it would be a wild ride. For one, Naruto has so many memories related to his training with Jiraiya. These could inspire the younger generation of ninjas to train harder. His memories of the Akatsuki battles could give the ninja villages a better understanding of their enemies. Also, his personal memories of loss, like the death of his parents, could make the villagers more protective of him and more committed to the idea of peace in the ninja world.
Obviously, Naruto himself is the most affected as he has to deal with the knowledge of the future. But his friends like Sasuke, Sakura, and Kakashi would also be deeply affected. If Naruto saw a future where Sasuke was in trouble, he would do everything to change it, which would impact Sasuke's life. Sakura, being Naruto's teammate and also caring about Sasuke, would be involved in any plan Naruto made. And Kakashi, as their sensei, would be there to guide and support them through the changes Naruto tries to make based on his future vision.
One possible plotline could be Naruto seeing a future where his friends are in great danger and he has to find a way to change the course of events. For example, he might see that Sasuke is about to be captured by a powerful enemy, so he starts training extra hard to be able to rescue him.
Well, in this fanfiction, Naruto might see himself as Hokage finally achieving all his dreams. He could see his friends and family thriving in a peaceful Konoha. Maybe he'd also see new generations of ninja being trained under his guidance.
Well, one possibility could be that Naruto has some sort of visionary ability where he can see snippets of the future during his past adventures. For example, he might see the final battle against Kaguya while he's still on a mission with his team as a genin. This could change his approach to training and how he interacts with his friends, as he tries to prepare them for what's to come.
Definitely Sasuke. His complex relationship with Naruto always adds an extra layer of tension and drama to the fight scenes. He has his own motives and power - ups which can make the battles unpredictable.
Well, perhaps when Naruto teams up with an unlikely ally in the fight. This can add a whole new dynamic to the battle and create some really interesting interactions. For example, if he teams up with a villain who has a change of heart. This not only shows Naruto's ability to influence others but also leads to some epic fight scenes with combined powers.