A great plot for a Star Wars Rebels fanfic would be a time - travel story. A Rebel accidentally travels back in time and has to find a way to get back to their own time while also making sure not to change the course of history too much. Or, you could focus on a love story between two characters from different species within the Rebels' group. This could add an interesting dynamic to the group and show how love can transcend differences in the Star Wars universe.
You could write a fanfic where the Rebels discover a hidden Jedi who has been in hiding for years. This Jedi could have unique powers or knowledge that helps the Rebels in their fight against the Empire. For instance, the Jedi might know of a secret planet that has resources the Rebels desperately need. The story could then revolve around the Rebels' journey to this planet and their battles along the way.
One idea could be exploring the backstory of a minor character in the series. For example, you could write about how a Stormtrooper decided to defect and join the Rebels. Another plot could involve a new threat that the Rebels have to face, something that even the Empire is not fully aware of. Maybe a powerful ancient Sith artifact is discovered and both the Rebels and the Empire are racing to get it.
One plot idea could be Kanan and Hera getting stranded on a desolate planet and having to rely on each other to survive. They could face dangerous native creatures and have to use their unique skills to build shelter and find food. Another idea is a story where they go undercover together on an Imperial - controlled world, pretending to be a couple to gather intelligence.
One idea could be a crossover with the original Star Wars trilogy characters. Maybe the Rebels crew teams up with Luke Skywalker and Han Solo to take on a new, powerful Sith threat. This would bring together the scrappy underdog feel of the Rebels with the classic heroism of the original trilogy.
There are several great plot ideas. For instance, imagine a situation where Yoda, before his death, set in motion a series of events that are only starting to unfold during the Rebels' time. Maybe he planted the seeds for a new Jedi order in a very secretive way. A young Rebel might stumble upon these secrets. Another idea is that Yoda's teachings, which were thought to be lost, are rediscovered by the Rebels through an ancient Jedi artifact. This discovery changes the way they approach the fight against the Empire. And what about a story where Yoda's influence reaches out to a non - Force - sensitive character in Rebels, inspiring them to do great things for the Rebellion in a different way?
A character could experience a moral transformation. A former Imperial who has joined the Rebels might start to transform back to his old ways due to the stress and hardships of the Rebellion. This internal struggle could be a central part of the fanfiction. The other Rebels would then have to decide what to do with him - try to reform him again or cut their losses. It would show the complex nature of the Rebels' cause and the different types of people it attracts.
One idea could be exploring the post - Rebels era and how the actions of the main characters have influenced the new generation. Maybe a young Jedi discovers an old artifact left by Ezra Bridger and it sets them on a journey to learn more about the Rebels' fight.
One idea could be a crossover with the original Star Wars trilogy characters. For example, having Luke Skywalker meet the Rebels crew and learn from their guerilla warfare tactics against the Empire. It would be exciting to see how their different fighting styles blend and how they interact with each other.
One plot idea could be that a character from Clone Wars gets accidentally sent to the time period of Rebels. For example, Ahsoka Tano could end up in the middle of a battle between the Rebels and the Empire. She might use her knowledge from the Clone Wars era to help the Rebels in unexpected ways, like teaching them some old Jedi combat techniques that were lost over time.
A great plot could involve Ahsoka and Lux getting stranded on a strange planet. While there, they discover a hidden community that has been living in isolation for centuries. This community has a special connection to the Force that neither of them has seen before. They have to figure out how to get off the planet while also protecting this new discovery from the Empire. As they spend time there, they also learn more about each other and grow as characters.
A great plot could involve Ezra and Hera going on a mission to retrieve an ancient Jedi artifact. Along the way, they face many challenges, like dangerous creatures and Imperial traps. Hera is skeptical about the power of the artifact, but Ezra is convinced it can help the Rebellion. Their different views create some tension, but also show how they complement each other. As they get closer to the artifact, they have to fight off Imperials who also want it for their own dark purposes.