A possible plot could involve a clone from the slave army who rises to become a great leader. He or she unites the clones and tries to find a new home planet for them, away from the wars and slavery they've endured. Along the way, they face many challenges, including betrayal from some of their own kind who have been brainwashed by the enemy.
Perhaps the clone slave army could be enhanced with new and unique abilities by an underground group. This could lead to a power struggle within the Star Wars universe as different factions try to control or use them. They could also start a revolution for equal rights among all beings in the galaxy.
One idea could be focusing on a young clone trooper who discovers he has unique Force abilities. He then has to hide this from his superiors while trying to figure out what it means.
One idea could be exploring the backstories of the clone troopers in more detail. Maybe focus on a particular clone and his relationships with his brothers. Another could be creating a new adventure for Anakin Skywalker during the Clone Wars that wasn't shown in the original series. For example, he could be sent on a secret mission to a planet that has a powerful and ancient Sith artifact.
One interesting plot idea could be exploring Dooku's early days in the Sith. Maybe showing how he was gradually corrupted by Sidious. Another could be a story where Dooku has a change of heart briefly and tries to make amends in some small way during the Clone Wars, but is quickly pulled back into the dark side by Sidious' influence. A third idea could be a fanfic that focuses on Dooku's relationship with his former Jedi colleagues during the Clone Wars, like how he feels when facing them in battle.
One idea could be exploring the backstories of the clone troopers in more depth. Maybe focus on a particular clone and his journey of self - discovery during the war. Another could be creating a new character, a young Jedi padawan who gets caught up in a mission that wasn't supposed to be for them but ends up playing a crucial role.
To develop it further, introduce characters within the clone slave army. There could be a group of clones who question their existence and start to resist. They could communicate secretly, share ideas about freedom. And then, there could be a conflict between those who want to fight for their freedom and those who are too afraid to go against the system.
A plot could involve Jesse and Kix being sent on a secret mission. They discover a conspiracy within the clone army that could have far - reaching consequences. As they dig deeper, they face challenges like distrust from their own comrades and attempts on their lives. They must use their wits and combat abilities to expose the truth.
Another interesting angle would be to have a Clone Wars character, like Anakin Skywalker, land on Earth for some reason. His presence could cause a stir among the people, and his Jedi powers would be both fascinating and potentially terrifying to the Earth population.
She could be a clone who rebels against the clone programming. Instead of blindly following orders, she starts to question the morality of the Clone Wars. She might try to find a way to end the war peacefully, even if it means going against her own side. This would create a lot of internal conflict as well as external conflict with her superiors and comrades.
A slave army in Star Wars fanfic can be a really interesting concept. It could be made up of various species that have been forced into servitude. For example, the Hutts are known for having slaves, and a fanfic might explore an army of slaves they've assembled to fight their battles. It adds a new layer of complexity and moral exploration to the Star Wars universe.
A plot idea could be a story from the perspective of a minor character during the 'Deception' events. Say, a civilian on Coruscant who witnesses some of the events unfold but misinterprets them. This could lead to a whole chain of events where their false assumptions create new problems or solutions in the Star Wars universe. Also, a plot could revolve around a Sith trying to use the deception for their own gain, but getting caught in a web of their own making.