Another plot could be set after Naruto becomes Hokage. Itachi somehow returns or his past actions are re - examined in a new light. Naruto, as the Hokage, has to deal with the revelations about Itachi and how they impact the village's history and relationships. They might work together to heal old wounds and face new challenges that are related to the past secrets of the Uchiha clan.
Perhaps Itachi in his Anbu form is sent to spy on a young Naruto who is showing signs of being a potential threat due to the Nine - Tails within him. But as he observes Naruto, he realizes that Naruto is different from what others in the village fear. This realization could change Itachi's view and start a chain of events that eventually leads to an unlikely friendship between the two when Naruto reaches the Hokage position.
One idea could be exploring Itachi's time in ANBU and how Naruto might have influenced his decisions secretly. Maybe Naruto, with his unique way of seeing people, could have made Itachi question his path in the ANBU more deeply.
One idea could be that the daughter of an Anbu member is discovered to have a unique Kekkei Genkai. This leads to her being closely watched by the Hokage, Naruto in this case. Maybe she has the power to manipulate time on a small scale, which could create all sorts of interesting scenarios in the ninja world. For example, she could use it to prevent small disasters or help in battles without others realizing how she's doing it at first.
Perhaps in the fanfiction, there's a prophecy that only Hokage Naruto and Anbu Sasuke can fulfill together. They have to embark on a dangerous journey outside the village to prevent a great disaster. Along the way, they face many challenges that test their friendship and skills. For instance, they might have to fight against ancient and powerful creatures. This would not only show their combat abilities but also how they support each other in difficult situations.
One idea could be Sasuke leading an Anbu mission while Naruto, as Hokage, has to deal with the political fallout of the mission's actions. For example, if the Anbu under Sasuke's command accidentally cross a border during a pursuit, Naruto has to smooth things over with the neighboring village.
One plot idea could be exploring Itachi's time in the Anbu in more detail. For example, showing his first difficult missions and how they shaped his views on the village and his family. Maybe he has to make a choice between following a cruel order from the higher - ups in the Anbu or protecting an innocent. Another idea is a story where Naruto somehow gets a glimpse into Itachi's Anbu past through a special jutsu or a shared dream. This could lead to Naruto having a new understanding of Itachi and changing his perspective on him.
One idea could be that Sakura, while on a mission with the Anbu team led by Itachi and Shisui, discovers a hidden jutsu that could change the balance of power in the ninja world. The Anbu team then has to protect her as she tries to master it and keep it from falling into the wrong hands.
In a fanfiction, if Naruto and Itachi were both involved in the Hokage scenario, Itachi could be resurrected through some means and Naruto, already a respected figure in the village, would propose Itachi as a candidate for Hokage. Itachi would initially be hesitant but Naruto's persuasion and the villagers' need for a different kind of leadership would make him accept. His time as Hokage would involve him training a new generation of shinobi in not just combat but also in understanding the importance of sacrifice and loyalty, with Naruto as his right - hand man, guiding him on how to interact with the more jovial and carefree side of the village life.
One idea could be Naruto facing a new and powerful enemy that challenges the very foundation of the Hidden Leaf while he's Hokage. He has to use his unique leadership style and ninja skills to protect the village. Another could be Naruto implementing new training programs for the younger ninjas, based on his own experiences growing up.
One idea could be a story where Naruto has to face a new, powerful and mysterious enemy that has the ability to manipulate time. This would put his skills as a Hokage to the ultimate test.
A possible plot could be that there is a curse placed by an ancient enemy on the Hidden Leaf. The only way to break it is to combine the powers of Naruto and the knowledge of the Second Hokage. Naruto has to enter a spiritual realm where he can communicate with the Second Hokage's spirit. They then work together, with Naruto using his modern - day skills and the Second Hokage providing ancient wisdom, to break the curse and save the village.