Well, if the Marauders time travel to the future in fanfiction, they would first have to deal with the cultural shock. The future society might have very different values and social norms. They would also encounter new forms of magic or maybe even a world where magic and technology have merged in ways they couldn't have imagined. And their relationships with each other would likely be tested as they adapt to the new environment.
Well, if the marauders time - travel to the future in fanfiction, they could encounter their descendants or people who know their stories. It would be a strange experience for them. Maybe they would use their magic in unexpected ways in this new and different world. They could also get into trouble as they might not understand the laws and regulations of the future.
Their relationships could become stronger as they face the new and strange future together. They would rely on each other more in this unfamiliar setting.
The marauders would probably have to adapt their way of thinking. In the future, the concepts of right and wrong, good and bad might have shifted. They'd need to understand these new perspectives to fit in.
They might be shocked by the advanced technology. For example, seeing flying cars and instant communication devices everywhere could leave them in awe.
One possible plot could be that the Marauders use a time - turning device by accident and end up in the future. They might be shocked by the advanced technology and different social norms. They could also meet their descendants or versions of themselves that are very different from what they expected.
When the Marauders travel to the future in a fanfiction, they may meet the students of Hogwarts in that future time. These students could be very different from the ones they knew in their own time. The Marauders might also come across future wizards and witches who are experts in new areas of magic that the Marauders have never even heard of. Additionally, they could meet people who are working on projects to preserve the history of the wizarding world, and these people might be very excited to meet the Marauders who are a significant part of that history.
One great fanfiction could be 'Time's Twist'. In this story, Hermione travels back in time and meets the Marauders. The author does an amazing job of showing how Hermione's modern knowledge clashes with the Marauders' era. It has some really interesting plot twists like how Hermione tries to prevent certain events from happening but ends up causing new ones. Another one is 'Marauder Era with a Time - Traveling Hermione' which focuses more on the relationships she forms with the Marauders. She becomes friends with them and they learn a great deal from her. There's also 'Hermione's Time - Jump to the Marauders' Time' which is known for its detailed descriptions of the Marauder's time period through Hermione's eyes.
I think it's not just the Marauders. There might be other characters who are important in the time - travel aspect. For instance, there could be a character who guides them through time or someone from the future or past that they encounter during their travels. But the Marauders are surely central as they are the ones with the time - travel adventure.