One idea could be a story where the zombies are created by a Sith experiment gone wrong. The Jedi have to fight both the zombies and the Sith forces behind it.
Perhaps a story where a group of smugglers find a derelict ship full of zombie-like creatures. They then have to navigate through the Star Wars universe while being chased by these undead threats and the authorities. For example, Han Solo - type characters could be in this situation, using their wits and the ship's capabilities to survive.
One idea could be exploring the backstory of a minor character in Star Wars 1. For example, a young Padawan who was on the same Jedi training grounds as Anakin but had a very different path. Another could be a fanfiction that focuses on the political intrigue on Naboo before the Trade Federation blockade. Maybe there were some secret meetings or power plays that we didn't see in the movie. A third idea is to write a story from the perspective of a droid during the events of Star Wars 1, like how they experienced the chaos and battles.
Perhaps a fanfiction where a group of gamers create their own custom clone units in the game and then those units somehow become real in the Star Wars universe. They then have to train and lead these unique clones in battles.
One idea could be exploring the origin of a new, mysterious force - user in the Shadow Wars. Maybe it's a forgotten Jedi or Sith technique that resurfaces and causes chaos. Another could be focusing on the relationship between a group of rebels and how they deal with the added threat of the Shadow Wars.
For a Star Wars Clone Wars crossover fanfiction, you could explore the idea of a group of Mandalorians from different time periods coming together during the Clone Wars. They might have different views on the war and the Jedi. Some could be more traditional, while others might be influenced by the changing politics of the galaxy. Their presence could add a new layer of conflict and intrigue. They could interact with Clone Troopers, Jedi, and even the Sith in unexpected ways, leading to some epic battles and character - development moments.
One idea could be to cross it with another sci - fi universe like Star Trek. Imagine the Jedi and the Federation crew working together. Another could be a crossover with the Transformers universe, where the clones team up with the Autobots to fight a common enemy. Maybe also a crossover with the Mass Effect universe, with the clones and Shepard's crew sharing combat strategies.
A great plot for Star Wars The Clone Wars fanfiction could be centered around a new, unknown planet that gets caught in the middle of the war. The planet has its own unique species and culture. The story could follow how the clone troopers and the Jedi interact with this new civilization, whether they try to protect it or use it for their own strategic advantages. Or perhaps a story where a group of clone troopers start to develop their own individual personalities and question their loyalty to the Republic due to some unethical orders they receive. This could lead to a conflict within the clone ranks and force the Jedi to take sides.
Imagine a fanfic where certain Pokemon species are native to specific planets in the Star Wars galaxy. Like, water - type Pokemon on Naboo. And there could be a story about a young Jedi who discovers a Pokemon egg on a strange planet. He takes it with him and as it hatches, they form a bond, and together they go on adventures, facing the challenges of both the Sith and other powerful Pokemon trainers.
In a Ninjago Star Wars fanfiction, you could explore what would happen if the Ninjago ninja were Force - sensitive. Kai, for instance, could struggle with the temptations of the Dark Side due to his hot - headed nature. The story could follow his journey as he tries to master the Force while also staying true to his ninja values. Meanwhile, the other ninja would also have their own experiences with the Force, and they'd all have to face new challenges in a universe filled with Jedi, Sith, and other Star Wars elements.
Well, you could have a fanfiction where the Galactic Empire somehow gets hold of the Omnitrix. Then they try to use it to create super - soldiers. Ben, of course, has to break into their strongholds to get it back. Or perhaps there's a story where Ben is mistaken for a new type of Force - user because his alien transformations seem to give him powers similar to the Force in some ways. He then has to navigate the complex politics of the Star Wars galaxy while trying to clear his name.
A really cool fanfiction idea would be if Kylo Ren somehow ended up in the world of Frozen. He could be initially seen as a threat, but then Elsa realizes that he has some good in him due to his internal conflict, much like her own struggle with her powers. Or perhaps a story where the Ewoks meet the trolls from Frozen. They could exchange their knowledge of the forest and magic respectively.