Percy could develop by becoming more responsible. As the adopted son of the Fates, he has a greater role in the grand scheme of things. So he might start thinking more about the long - term consequences of his actions.
Percy could develop a greater sense of purpose. Since he is the son of the Fates, he might start to see the grander scheme of things more clearly. He could become more solemn and less impulsive as he realizes the weight of the Fates' plans on his shoulders.
His character would develop in multiple ways. Firstly, Percy would gain a new sense of discipline. Hephaestus' work demands it. He'd have to follow strict procedures when forging. This would contrast with his more impulsive nature. He'd also develop a new kind of confidence. Knowing he can create things gives him a different kind of power. And he'd probably become more of a team player within the Hephaestus cabin. He'd learn to collaborate with the other kids, sharing ideas and skills. He'd start to understand that his success isn't just about his own abilities but also about how well he can work with others in this new area of expertise. Overall, he'd transform from a mostly solo fighter to someone who can contribute in a group setting in a whole new way.
Percy would likely become more in tune with the arts and creativity. As Dionysus is associated with theater and celebration, Percy might start to appreciate and participate in these aspects more. He could become more flamboyant in his expressions and actions, which is a contrast to his more straightforward nature as a son of Poseidon. For example, he might start to use his powers in more creative ways during battles, like creating illusions of vines and grapes to confuse his enemies.
Percy would likely become more devious. Growing up with Loki as an adoptive father, he'd be exposed to Loki's tricks and lies. So instead of his straightforward, if sometimes impulsive, nature in the original Percy Jackson stories, he might think more about the different angles of a situation before acting.
Percy's character would likely become more versatile. He'd start to incorporate Apollo's traits like confidence and a love for the arts. His power set might expand to include things like healing, which is associated with Apollo. He'd also become more in tune with the sun and light, which could change his overall perspective on things.
In this fanfiction, Percy's character development would be quite interesting. He would start to value the concept of sisterhood that the hunters have, even though he's not a girl. This could make him more protective of the group. His fighting style might change too, as he'd learn new techniques from the hunters. Percy would also develop a deeper sense of loyalty to Artemis, which would influence his decision - making. He might become more of a thinker rather than just a doer, as he'd have to consider the implications of his actions on the hunters and Artemis's reputation.
Percy's character often develops in terms of his self - confidence. As the son of Thetis, he has new powers and responsibilities. At first, he might be a bit overwhelmed, but as he faces challenges, he becomes more sure of himself and his abilities.
Percy would likely become more studious. Since Athena values knowledge, he would be more interested in learning about history, magic, and other aspects of the demigod world. He might spend more time in the library at Camp Half - Blood, much to the surprise of his friends. His relationships with others would also change. He could be more aloof at first as he tries to adapt to his new role, but as he grows into it, he would form deeper, more intellectual connections with those around him.
Develop his relationships. If Percy is the son of Persephone, his relationships with other characters like Annabeth will change. There could be jealousy or confusion from her side as Percy's new heritage might bring new responsibilities and loyalties. Also, his relationship with the gods, especially those related to the Underworld and nature, would need to be explored. He might have to deal with Hades in a different way now.
He would likely become more aggressive at first. Since Ares is the god of war, Percy would be exposed to a lot of combat - oriented values. But over time, he might learn to temper that aggression with his own sense of justice. His confidence would also grow in a different way compared to when he was just Poseidon's son. He'd be more assertive in battle situations and less hesitant to use force when necessary.