His relationships would change drastically. His bond with Kanan would be severed, and instead, he'd form new alliances with the Inquisitors. However, these relationships would be based on power and fear rather than the friendship and mentorship he had in the Rebellion. He'd also be seen as a traitor by his old friends, which would add a layer of guilt and isolation to his character development.
Ezra's development as a Sith would be a slow and gradual process. At first, he might think he can control the dark side and use it for the good of the Rebellion. But as he delves deeper, he starts to change. His sense of humor would fade, replaced by a cold and calculating demeanor. He would become more isolated, believing that his newfound Sith powers make him superior to his friends. His use of the Force would become more aggressive, using it to intimidate and dominate rather than to protect and help as he did before. His costume might also change, with darker colors and more menacing accessories, symbolizing his transformation into a Sith - like figure.
Ezra might become more confident. With a harem of characters around him, he would constantly be getting support and admiration. This would boost his self - esteem as he realizes his worth not just as a Jedi but also as a person. For instance, when he faces challenges, the women in his harem would encourage him, making him more determined to succeed.
Their relationship could develop in a hostile way at first. The Inquisitor is tasked with hunting Ezra, so he would be constantly on Ezra's tail, trying to capture or kill him. Ezra, in turn, would see the Inquisitor as a major threat and fight back with all his might.
Another possibility is that in the alternate universe, Chopper is actually a super - advanced droid with a hidden ability to enhance Ezra's Force powers. As they discover this ability, their relationship would shift from a normal friendship to a very special and powerful partnership. Ezra would need to keep Chopper safe not only because he's his friend but also because Chopper is key to his growth in the Force. This would lead to a much more intense and interdependent relationship.
Ezra could develop by becoming more of a warrior. In a Mandalorian - centered fanfiction, he'd be exposed to their combat - centric culture. So he might become more battle - hardened and less reliant on just his Force powers.
As they work together more often, they might develop a friendship. For example, Ezra could teach Leia some of the more unorthodox ways of using the Force that he learned from Kanan, and Leia could introduce Ezra to the broader political landscape of the Rebellion. This exchange of knowledge would bring them closer.
Ezra being 12 in the fanfiction could lead to plots centered around his coming of age and facing challenges with a younger mindset. Maybe he has to prove himself despite his age.
Their relationship could develop as they train together. Ezra would learn more refined Jedi techniques from Ahsoka. This would create a deeper bond of respect and mentorship.
A more complex storyline could be that the Inquisitor, who was once a Jedi himself, sees Ezra as a chance for redemption. He secretly tries to guide Ezra away from the path of the Rebellion, believing that the Jedi should stay out of galactic politics. This creates an internal struggle within Ezra as he has to decide whether to trust the Inquisitor or not.
One possible storyline could be Ezra's struggle with the dark side. He might initially be lured by the power that being an Inquisitor offers. For example, he could be tempted by the ability to defeat the Empire more effectively but at the cost of his own moral compass. Another could be his relationship with the other Inquisitors. He might be an outcast among them, as he was once a rebel. Or perhaps he tries to use his new position to secretly help the rebels, creating a complex web of double - agent - like situations.