A plot could be that they time - travel to a period when a great war was about to start. Naruto and Ino would then work together to gather intelligence using Ino's mind - link abilities and Naruto's combat skills to infiltrate enemy camps. They would try to find a way to stop the war before it fully breaks out, and during this journey, their relationship deepens even more, and they realize how much they mean to each other, which was already strong from being married in their original time.
In some versions, Orochimaru could be a main antagonist. Since he has his own devious plans and is always looking for power, Naruto and Ino might have to deal with him all over again as they travel back in time. He could be trying to interfere with their attempts to change the past.
At first, they might be a bit awkward around each other. Naruto is used to his normal interactions with Ino, but now in this new time - travel situation, they have to rely on each other more. Ino might start to see Naruto in a new light, as someone who is not just the goofy kid she knew. As they face challenges together, like dealing with historical events and enemies, their bond would strengthen. They would learn to trust each other more deeply and understand each other's strengths and weaknesses better.
Naruto would probably become more cautious. In the original story, he was quite impulsive. But with Ino by his side during time travel, he'd have to think more about his actions as they are a team. Ino, on the other hand, would become more confident in her combat abilities. Since Naruto is a strong fighter, she'd learn from him and be more willing to engage in battles directly rather than just relying on her mind - related jutsu.
One interesting plot could be that Naruto and Ino travel back in time and try to prevent some of the tragedies that happened in the original Naruto story. For example, they might stop the Uchiha clan massacre.
One interesting plot idea could be that Naruto and Ino travel back to the time when the Uchiha clan was still intact. They could try to prevent the massacre from happening. Naruto, with his knowledge of future events and his strong will, might try to convince the clan leaders and the village elders to find a different solution to the conflict. Ino, with her mind - related jutsu, could help in communicating with the Uchiha members on a deeper level to ease the tensions.
One great 'Naruto x Ino x Sakura Time Travel Fanfiction' is 'Back to the Beginning' on FanFiction.net. It has an interesting plot where the three are sent back in time and have to deal with past events while also changing their relationships in unexpected ways.
A common theme is redemption. They might go back in time to fix their past mistakes or save characters who died. For instance, they could try to prevent the death of a beloved teacher.
A mystery - genre Ino time travel fanfiction could be interesting. She could travel to a time where there are unsolved ninja mysteries. Her ability to read minds might help her solve these mysteries, but she also has to deal with the cultural and technological differences of that time.
In 'naruto x ino time travel fanfic', a frequent theme is the power of knowledge. Since they come from the future, they can use their knowledge to their advantage. Also, the theme of self - growth is common. As they face the challenges of the past through time travel, they grow as individuals. And of course, the theme of love and friendship often plays a big role as they rely on each other during their time - traveling experiences.