One idea could be that Phoenix Wright travels back in time to his law school days. He uses his future knowledge of the law and courtroom tactics to ace his exams and gain early notoriety. This would change the way his early career unfolds and potentially make him an even more formidable lawyer earlier on.
Phoenix himself would likely be initially shocked and disoriented by the time travel. But being a determined lawyer, he would quickly start to analyze his situation and look for ways to use it to his advantage. His reactions would be a mix of confusion and his characteristic tenacity.
Well, it could start with Phoenix getting into a normal carpool, say with some of his colleagues or friends. Then, something strange happens, like a lightning strike or a magic spell, and suddenly the car becomes a time - traveling vehicle. They then travel to different eras, and Phoenix uses his legal knowledge to navigate the strange situations they encounter.
One great fanfiction could be where Phoenix Wright time - travels during a carpool and ends up using his legal skills in a different era. Maybe he's carpooling with Maya and they get zapped back in time. It could be filled with his courtroom antics in a historical setting, which would be really interesting to read.
One idea could be that the Vault Hunters accidentally stumble upon an ancient alien device that sends them back in time. They then have to navigate the past Borderlands, which may have different versions of their enemies or allies. They could also meet the ancestors of the characters they know and change the course of history in unexpected ways.
In a fanfiction plot, Starkiller could travel to different time periods to collect powerful artifacts. Each time period has its own challenges and enemies. As he travels through time, he starts to understand the true nature of the Force and how it has been manipulated throughout history.
Another plot could involve a time-traveling duel. A powerful duelist from the future uses time-travel technology to come back to the GX era to challenge Jaden. The duels would have new rules and cards from the future, making it a very exciting and different kind of duel for Jaden and his friends to face.
Another plot could involve Minato traveling back in time and meeting his parents. He could learn more about his family's past and secrets that were lost over time. This could lead to him unlocking new powers or abilities that were somehow related to his family heritage. He might also be able to use this new - found knowledge to better protect the village in his original time.
Maybe a villain from the future travels back in time to eliminate the Cobra Kai dojo before it even starts. This would disrupt the entire timeline of the series. The heroes would then have to figure out a way to stop this time - traveling villain and preserve the dojo's existence.
One idea could be that Khal Drogo travels to the future and is amazed by modern technology. He might see skyscrapers and cars and think they are strange magic. He could try to adapt to this new world while still holding onto his warrior ways.
Maybe they time - travel to a time when a great war was about to start. Sakura, with her medical skills, and Sai, with his strategic thinking from being an Anbu, could work together to prevent the war. They could try to change the minds of the leaders involved by showing them the future consequences of the war. This would involve a lot of sneaking around and trying not to be discovered as time - travelers.