One interesting plot could be Naruto traveling back in time to the Uchiha massacre. He could use his EMS powers to prevent it, which would completely change the future of the ninja world. He might try to reason with Itachi, showing him a different path where the Uchiha and Konoha can co - exist peacefully.
A third plot could be Naruto time - traveling during the Third Great Ninja War. He could use his EMS to turn the tides of many battles. He might also meet his parents when they were young and change their fates. This would be a really exciting plot as he could not only influence the outcome of the war but also his own family's history.
Another idea is Naruto traveling back to the time when the Hidden Leaf was just founded. With his EMS - enhanced abilities, he could help Hashirama and Madara in their early days. Maybe he could prevent their later falling - out and the subsequent wars that followed. This would create a very different ninja world, with the two most powerful shinobi of that time working together under Naruto's influence.
A cool plot could be a crossover where the EMS has a connection to an ancient Naruto artifact. Say, an EMS - powered device can unlock the secrets of an old, sealed jutsu. Characters from both sides would then team up to explore this mystery. They'd face challenges like different cultures clashing. The EMS characters might not understand the ninja code, and the Naruto characters would be confused by the EMS technology. This would lead to some interesting character development and interactions.
A plot idea could be that the Akatsuki from Naruto somehow cross over to the One Piece world. They all have EMS or Rinnegan powers. They start causing chaos by trying to collect powerful Devil Fruits instead of Tailed Beasts. The Straw Hat crew has to team up with some Naruto characters who also end up in the One Piece world to stop the Akatsuki. It would be a battle of different powers and ideologies.
One common plot twist could be that Naruto's time travel causes unexpected changes in the past that end up altering the future in ways he didn't anticipate. For example, his presence in the past with his EMS and Rinnegan powers might disrupt the normal flow of chakra development among the ninja clans. Another plot twist could be that the time travel is not a one - way trip, and he has to constantly battle against the forces that are trying to keep him in the past or prevent him from changing certain events. Also, he might discover that his own powers in the past are somehow connected to an ancient prophecy that no one in his original time knew about.
One idea could be exploring how the EMS (Eternal Mangekyo Sharingan) affects Naruto's relationships. For example, it might make some of his friends a bit wary of him at first. Another could be a story where Naruto has to master the power of the EMS quickly to face a new, extremely powerful enemy that has emerged in the ninja world.
One idea could be that Naruto travels back in time and gets adopted by a different clan. For example, the Uchiha clan. This would change his whole upbringing and how he views the world. He might learn different jutsus earlier and have a different relationship with Sasuke.
A cool plot idea could be Minato traveling back to his own childhood. He could then use his future knowledge to train himself more effectively, making himself an even more powerful shinobi at a younger age. This would have a huge impact on the future of the Leaf Village as he would be able to better protect it earlier. He might also be able to prevent some of the early tragedies that happened in the village.
One idea could be Tobirama traveling to the future and seeing how his village has developed. He might be shocked by the new technology and the different ninja techniques. Another plot could involve Tobirama going back in time to change a crucial event in Naruto's past, like preventing the Uchiha massacre. Or perhaps he travels to a different timeline altogether and has to find a way back while dealing with that timeline's unique challenges.
One idea could be Naruto traveling back in time and meeting Hashirama. He could learn about the founding of the village directly from Hashirama. Maybe Naruto helps Hashirama deal with some early threats to the village that were not well - documented in history.
One interesting plot idea could be Kakashi traveling back in time to before the Uchiha massacre. He could try to prevent it, which would completely change the future of the Naruto world. Maybe he'd have to face off against Danzo and his schemes early on.
One plot idea could be Sakumo traveling back in time to prevent his own death. This would change the course of Naruto's world as his father's death had a big impact on Kakashi, who in turn influenced Naruto. Another idea is Naruto traveling back to meet Sakumo and learn some long - lost jutsu from him. It could also be that they both travel back to a crucial point in Konoha's history and work together to save the village from a greater threat that was previously not averted.