There might be a fanfiction where Ahsoka tries to redeem Maul. Given her Jedi - like nature, she could see the good in him that was once there before he fully turned to the dark side. This would involve a lot of emotional exchanges and battles within Maul's mind as he struggles with his past and the possibility of redemption.
One possibility in fanfiction could be that Ahsoka is tricked into the Dark Side. Maybe an old enemy manipulates events to make her feel betrayed by the Jedi Order. This could lead her to explore the power of the Dark Side, believing it to be a way to seek justice on her own terms.
Their relationship can be developed through shared experiences. For instance, if they are put in a situation where they have to protect a group of innocent civilians. Zeb's natural instinct to protect and Kallus's new - found loyalty to the Rebellion can bring them closer. They might start to communicate more, sharing stories from their pasts which helps them understand each other better.
One plot idea could be that Zeb and Kallus are forced to team up on a mission in an unknown planet filled with dangerous creatures. They start off distrusting each other but as they face challenges together, they gradually learn to respect and rely on one another. For example, Zeb's brute strength and Kallus's strategic mind could combine to defeat a powerful enemy that neither could have faced alone.
Perhaps in this fanfiction, Ahsoka's return is not without challenges. She might be hunted by the Empire who sees her as a major threat. The Rebels would have to protect her while also trying to utilize her skills. Ahsoka herself could be conflicted about her role in the Rebellion, having been away for so long, but eventually decides to fully commit to the cause once again.
Well, Ahsoka Tano is significant as she adds depth to the Jedi lore. She was trained in the ways of the Jedi by Anakin, and her story shows the cracks in the Jedi Order. Her experiences, like leaving the Order, give a different perspective on what it means to be a Force - user. Also, her skills in combat and her connection to different characters across the Star Wars saga make her a key figure.
She might be tempted by the Dark Side if she discovers a hidden truth about the Jedi Order that she can't accept. So she turns to the Dark Side thinking it's a better alternative. For instance, if she finds out that the Jedi have been hiding some dark secrets about the Force, it could push her over the edge.
In some fanfictions, there could be a powerful Sith Lord who is specifically targeting Ahsoka and Lux. This Sith Lord might see their combined potential as a threat to their own plans for galactic domination.
A simple plot could be that Ahsoka returns to find the Rebels in a dire situation. She quickly assesses the situation and starts to train some of the Rebel soldiers in Jedi - like combat skills. This gives the Rebels an edge in their skirmishes with the Empire.
One common theme is loyalty. Rex and Ahsoka have a deep loyalty to each other that dates back to the Clone Wars. In many fanfictions, this loyalty is tested but always prevails. For example, in stories where they are faced with difficult choices that could put the other in danger.