One idea could be exploring what would have happened if Anakin had a different mentor during his fall to the dark side. Maybe a Jedi who was more in tune with his emotions could have guided him better.
Another plot could be centered around Padmé. What if she had found out about Anakin's turn earlier and tried to stop it herself? She could have formed an alliance with some of the more rebellious Jedi or senators. For example, she might have worked with Bail Organa to expose Palpatine's true nature before Anakin fully succumbed to the dark side. This would add a whole new layer of political intrigue and personal drama to the story.
A third idea is to explore the clones' perspective more deeply. In a fanfiction, we could see how some of the clones might have been conflicted about following Order 66. What if a group of clones realized what was really going on and decided to rebel against it? They could have joined forces with the remaining Jedi, creating a new kind of alliance in the face of the Sith's rise.
Perhaps a fanfiction where Anakin, as a Sith, is sent on a mission by Palpatine. But on this mission, he meets a young Force - sensitive who reminds him of his own past. This makes him start to have doubts about the Sith ways. He begins to secretly teach the young one about the Force in a more balanced way, all while trying to hide it from Palpatine.
One plot idea could be Rey being tempted by the dark side and Sith teachings in a more psychological way. Maybe she starts having visions of past Sith Lords who try to convince her that the power they offer can help her protect the galaxy more effectively. Another could be a story where Rey discovers a hidden Sith artifact that has the power to either corrupt or be redeemed, and she has to make a choice about what to do with it. A third idea is that Rey has to face a new Sith threat that is related to her own past in some way, like a long - lost Sith relative or a Sith cult that was involved in her family's history.
One idea could be a young Jedi who falls to the dark side and starts to gather a harem of Sith apprentices, each with their own unique skills and backstories. They could all be on a quest to find an ancient Sith artifact that is said to grant ultimate power.
Another idea is that the Sith Empire decides to use a new form of Sith magic during the Clone Wars. This magic starts to corrupt the planets it is used on, and the Jedi have to find a way to stop it. The story could show the different reactions of various species to this new threat. For example, some might be more susceptible to the corruption while others are more resistant. The Jedi would have to form alliances with these different species to combat the Sith Empire's new weapon. This would involve a lot of political maneuvering as well as physical battles. It could also explore the nature of the Force and how the Sith's use of it in this new way affects the balance.
The plot of Revenge of the Sith centers around the final stages of the Clone Wars and Anakin Skywalker's descent to the dark side. It's a complex and intense story with lots of action and drama.
One idea could be Anakin as a Sith having to face his former Jedi allies. He might struggle with his new identity while still having remnants of his Jedi self. For example, he could be sent on a mission by the Sith to destroy a Jedi stronghold but find himself hesitating when he sees his old friends there.
One idea could be exploring the origin of a new Sith Lord. Maybe this Sith Lord has a unique backstory that ties into an ancient Sith artifact, leading to a power struggle within the Sith ranks as others vie for this newfound source of power.
A cool concept for a Sith self - insert fanfiction would be a character who was experimented on by the Sith, giving them enhanced Force abilities but also a strange connection to the light side that they constantly have to fight against. They might be seen as an outcast among the Sith because of this internal struggle. Their journey could involve trying to prove themselves to the Sith while also coming to terms with their own identity within this dark - side - dominated world.
There could be a fanfiction where a former Sith, who has turned away from the dark side, returns to the Sith Temple to face his past. He has to confront the memories and the remaining Sith loyalists in the temple. Along the way, he discovers that there are some secrets in the temple that could be used to bring balance to the Force, if he can just figure out how to use them without falling back into the dark side.
Definitely, it's canon. Revenge of the Sith is an integral part of the Star Wars storytelling, adding depth and context to the overall saga.