One possible plot could be that Sakura and Itachi travel back in time to the Uchiha massacre. Itachi, having a second chance, might try to find a different way to save the Uchiha clan while still protecting Konoha. Sakura, with her medical skills and knowledge of future events, could assist him. For example, she could help him find evidence to prove the Uchiha's innocence to the village elders, thus preventing the massacre from happening at all.
Maybe they travel to a time when the Akatsuki was first formed. Sakura could use her understanding of the Akatsuki's future actions to try and sway Itachi away from joining. Itachi, on the other hand, might be conflicted as he still has his original mission in mind. But with Sakura's influence, they could end up changing the course of the Akatsuki's actions, which would have a huge impact on the Naruto world as a whole.
One popular plot idea could be that Sakura and Itachi travel back to a crucial moment in the ninja world's history. For example, they might go back to the time when the Uchiha clan was on the verge of being massacred. Sakura, with her medical skills and modern knowledge, could try to find a non - violent solution to the Uchiha - Konoha conflict. Itachi, on the other hand, would have the chance to relive that moment and perhaps change the fate of his clan. Another idea is that they travel to the future. There, they see the consequences of the actions in their own time and try to go back and correct things in their present. This could involve seeing a destroyed Konoha and working together to prevent it.
The alteration of the timeline is also a major theme. Sakura's presence in the past due to time travel often causes ripples in the established Naruto timeline. This can lead to changes in events, character fates, and the overall shinobi world. Fanfiction writers love to play with these possibilities, creating new and exciting storylines that deviate from the original in interesting ways.
Perhaps in the fanfiction, Sakura and Itachi are in a police force that has to deal with international ninja disputes. Sakura, with her intelligence and strong will, and Itachi, with his strategic mind, work together to prevent a full - scale war between two large ninja clans. They face many challenges along the way, including distrust from their own comrades who are skeptical of their unorthodox methods.
The plot could involve Itachi noticing Sakura's isolation within her own team at some point. He decides to adopt her in a sense, like becoming a mentor to her. Itachi could share his insights on how to deal with powerful enemies and the sacrifices one has to make for the greater good. Sakura would then grow not only in her combat skills but also in her understanding of the complex world of ninjas. She might start to see things from a different perspective, similar to Itachi's, which could cause some friction and also growth within her relationships with Naruto and Sasuke.
One possible plot could be that Sakura and Neji are sent back in time to the founding of their village. They use their modern knowledge of jutsu and combat to change some key events that lead to a better future for the village. For example, they might prevent a certain war from starting or help in the development of more advanced ninja techniques earlier.
The plot might involve Sakura and Hashirama working together to prevent a great disaster. Maybe there was a powerful and evil being that was sealed away in Hashirama's time, but in Sakura's future, signs of its return start to show. So when Sakura travels back, they join forces. Hashirama could learn from Sakura's advanced combat techniques, and Sakura could learn from Hashirama's unique wood - style jutsu. They might also have to face challenges from within the village, as some people are suspicious of Sakura and her motives.
In this fanfiction, Sakura might be on a mission to change the past in order to save someone important in her present. Minato could initially be suspicious of her but then come to trust her as they face common enemies. They could end up influencing each other's future and past in unexpected ways, like Sakura teaching Minato some basic first - aid knowledge that he then passes on, which changes the course of some future battles.
Well, one possibility is that Itachi has some hidden motives. Maybe he believes Sakura has knowledge about something important in the ninja world, like a secret jutsu or information about an enemy. So he kidnaps her to extract that information.
Well, there's 'Back to the Shinobi Past'. It's a Sakura Itachi time travel fic where Sakura accidentally goes back to a time when Itachi was still a young ANBU. It shows a different side of their relationship as they navigate the complex shinobi world of the past together. It has some interesting twists and turns as Sakura tries to figure out how to get back to her own time while also influencing the past in a positive way.
Perhaps in the fanfiction, the first time is when Sakura is sent to spy on Itachi. But instead of hating him as she expected, she discovers a side of Itachi that is full of pain and regret. This changes her perception of him completely and she decides to try and help him, leading to a complex relationship between them.