What are some interesting plot ideas for an RWBY time travel fanfic?

Another interesting concept is if an enemy from the past is brought to the present in a time travel accident. Maybe Salem is accidentally brought forward in time. This would force the RWBY characters to face her with their current skills and knowledge, leading to intense battles and strategic planning as they figure out how to send her back or defeat her in this new time.

One idea could be Ruby traveling back in time to the moment when Beacon Academy was first founded. She could then use her knowledge of future events to prevent certain disasters from occurring, like the Grimm attacks that would later plague the school. Another plot could involve Ruby going back to a time when her mother was alive and getting to know her, which would add a lot of emotional depth to the story. Maybe she could also change some events in her mother's life that would have a ripple effect on the present she came from.

Maybe in the fanfic, a villain has the stop - time ability. This causes chaos as they start stealing important artifacts while everyone else is frozen. The RWBY team has to find a way to counter this power, perhaps by teaming up with a time - wizard who teaches them how to move in stopped time.

One idea could be Batman traveling back to the time when Gotham was first founded. He could try to prevent the seeds of corruption from being sown. Another plot could be him traveling to a future Gotham that has been completely overrun by villains and he has to find a way to change that future by altering events in the past. Or perhaps he travels to different time periods to gather knowledge and technology to better fight crime in his own time.

A cool plot could be that a villain from the future uses time travel to go back and change the past in order to gain ultimate power in the Arrow universe. The heroes then have to figure out a way to reverse the changes and stop the villain. This could involve a lot of action scenes as they race against time to save their world from this altered timeline.

A cool plot for a Pokemon time travel fanfic might be that a Pokemon researcher travels back in time to study ancient Pokemon species that are now extinct. Along the way, they encounter problems like not being able to use modern technology to catch or study the Pokemon. They might have to rely on the knowledge of the people in that era. Also, a trainer could travel through time to meet their ancestors who were also Pokemon trainers and learn about their family's history in the Pokemon world.

One idea could be that Luffy travels back to the time when Gol D. Roger was still alive. He could meet the Pirate King and learn some of his secrets. Maybe Roger gives him a hint about the One Piece that changes Luffy's understanding of his journey.

A really interesting plot would be if a time - traveling villain from another dimension comes to the HTTYD world and tries to change the past to make dragons evil. Hiccup and his friends then have to travel through different time periods to stop this villain. Or perhaps the characters travel to a time when there were giant, prehistoric dragons that they have to deal with, and they learn new ways of dragon - riding from the ancient Vikings who tamed those behemoths.

One interesting plot point could be how Salem's time travel affects the balance of power in the RWBY world. For example, if she goes back in time and allies with certain villains or undermines the heroes in their early days.

Another plot could be that they accidentally travel to a future time instead of the past. In this future, Remnant is in a state of chaos and they have to figure out what went wrong. They might discover that it was their own actions in the past (from their original timeline) that led to this future. So they have to find a way to go back to their original time and change things to prevent this dark future from happening.