A possible plot for an Ahsoka Tano DC crossover fanfic is that Ahsoka's ship malfunctions during a hyperspace jump and she ends up in the DC universe. She is initially mistaken for an alien threat but then proves herself to be an ally. She could end up training some of the younger heroes in the DC universe, like Robin, in the ways of discipline and self - control, similar to how she was trained as a Jedi. And perhaps she discovers a connection between the Force and some of the DC universe's magic or meta - human powers.
One idea could be Ahsoka getting transported to the DC universe and teaming up with Batman. She could use her combat skills and Force - sensitivity to help him fight against Gotham's villains. Another plot could involve her meeting Wonder Woman and learning about the different types of power and heroism in the DC world. Maybe she gets caught in the middle of a battle between the Justice League and their enemies and has to use her Jedi wisdom to broker peace.
One idea could be a crossover with the Star Wars Rebels crew. Ahsoka could team up with Ezra and Kanan to face a new threat that combines elements from different eras of the Star Wars universe, like a Sith Lord using ancient Jedi artifacts in a new way. Another plot could involve a crossover with the Mandalorian. Ahsoka could cross paths with Din Djarin and Grogu, perhaps helping them in a battle against remnants of the Empire while also sharing her wisdom about the Force.
A great plot could be Ahsoka having to face a Sith Lord who has a personal vendetta against her. This Sith Lord could be an old enemy she thought was dead. Or perhaps a plot where she is training a new group of Force - sensitive individuals in a post - Empire galaxy, and they face threats from remnants of the Imperial forces. Also, a story where she goes on a quest to find an ancient Jedi artifact that has been lost for centuries.
Maybe Ahsoka gets captured by a dark side cult. They try to convert her by showing her their version of 'justice' through the dark side. They expose her to their cruel and efficient ways of dealing with enemies, which makes her question her Jedi teachings. However, she eventually realizes that their 'justice' is just tyranny in disguise.
One plot idea could be Ahsoka finding herself in a parallel universe where she's considered a rogue Jedi. She has to team up with alternate versions of her friends to fight a common enemy. Maybe an ancient Sith cult has risen and they are the only ones who can stop it.
Ahsoka would fit into the DC power hierarchy in an interesting way. Her Force - based powers are quite unique. She can't fly like Superman, but she can jump incredibly high and move quickly. In a fight, her lightsaber skills would be a great asset. Against some of the street - level villains in Gotham, she'd be overpowered. But when it comes to facing meta - humans like the Flash or Aquaman, she could hold her own. She has a different kind of power that is based on spiritual and mental discipline, which could make her a valuable addition to the power dynamics in the DC universe.
Another idea is a crossover where Rogue Ahsoka Tano stumbles upon a world full of magic. She has to use her Jedi skills in combination with the new magical elements she discovers there. For example, she might learn to combine the Force with magic spells to defeat an evil sorcerer.
One idea could be a crossover with Star Wars Rebels. Ahsoka could be betrayed by someone she thought was an ally in the fight against the Empire. Maybe a new character who was secretly working for Thrawn all along. This would lead to a complex plot where Ahsoka has to not only survive but also figure out who she can trust again.
A possible plot could involve Ahsoka being betrayed by someone she trusts deeply within the Jedi or among her friends. This betrayal could be so severe that it pushes her over the edge, and she turns to the dark side for revenge. She then uses her newfound dark side powers to seek retribution against those who wronged her.
One idea could be Ahsoka traveling back in time to the Clone Wars era and changing a small event that has big consequences. For example, she might prevent a key battle from happening which then alters the relationships between the Jedi, the clones, and the Separatists.
Ahsoka might be a vigilante in the DC fanfic. She could operate in a city like Metropolis, using her acrobatic skills and combat knowledge to take on criminals. Her lightsaber - like weapons could be modified to look like some sort of high - tech devices in the DC world, and she would be a mysterious and powerful figure in the city.