His powers might become more related to Hera's domain. For example, he could gain some control over marriage and family bonds. He might be able to sense when relationships are in trouble or strengthen the loyalty between people. Also, his existing powers could be enhanced in a way that reflects Hera's influence. Maybe his water - based powers could be more refined and have a new aspect to them, like being able to purify water to heal emotional wounds as well as physical ones, since Hera is associated with purity in some ways.
His powers could become more ice - related. Since Khione is the goddess of snow, Percy might gain the ability to freeze water instantly. For instance, instead of just controlling water, he could turn it into ice sculptures or use ice as a weapon, like creating ice shards to throw at enemies.
His physical strength might increase. Thor is known for his great strength, and as his adopted son, Percy could inherit some of that. He might be able to lift heavier objects or fight more powerfully in close - combat situations. Maybe he could even hold Mjolnir for a short period of time, which would be a huge boost to his powers and status in both the Greek and Asgardian worlds.
His relationship with Annabeth could become strained. Annabeth might be distrustful of Hera's intentions, and since Percy is now under Hera's influence, she could be worried that Percy will be turned against their friends. For example, Hera might try to keep Percy away from Camp Half - Blood, which would make Annabeth angry.
If Percy were the son of Poseidon and Hera, his powers would be quite unique. His water powers could be enhanced in a different way. Maybe instead of just controlling water, he could transform water into different substances related to Hera's domain, like turning water into a fertile soil - like substance for plants to grow. His leadership skills would be off the charts. He could use his Poseidon - given strength and Hera - influenced charisma to lead not just demigods, but also other mythical creatures. He might also have the power to protect a place or a group of people in a more profound way, like creating a shield made of both water and a golden energy that represents Hera's protection.
When it comes to his relationship with Hera herself, it would be complex. At first, Percy might be resentful or confused about being adopted by her. But as time goes on, he might start to understand her in a way no one else does. Hera could start to see Percy as a true son, and this could lead to a deep, if somewhat unusual, bond between them. Percy would have to balance this new relationship with his existing ones, and it could lead to some really interesting character development and story arcs.
Percy's relationship with the other campers at Camp Half - Blood would be a rollercoaster. The children of Poseidon might feel a bit betrayed or confused, as they thought Percy was one of their own. However, Percy could use his new status to bridge gaps between different cabins. For example, he could work with the children of Aphrodite to improve relationships in the camp, since Hera has some connection to love and relationships in a different way than Aphrodite. With the gods, his relationship with Zeus would be extremely strained, given Zeus's past issues with Hera. But he might find new allies among the gods who are friendly with Hera, like Hephaestus. Overall, Percy's relationships would be a mix of challenges and new opportunities.
His relationship with Annabeth would be very different. Instead of their usual dynamic, she might be more cautious around him. Since he's the son of Hades and Hera, she would be aware of the power and potential danger he represents. His friends from Camp Half - Blood might also be a bit more in awe of him or even a bit afraid.
If Percy is the son of Hera and Chaos, his relationships will be turned upside down. His interactions with the campers at Camp Half - Blood would be full of tension. They would be curious yet afraid of him. His relationship with the gods would be a mess. Hera, who is not known for her motherly love, might still have some sort of strange bond with him, but it would be nothing like a normal mother - son relationship. And the other gods would view him as an anomaly. His relationship with his enemies, like the Titans or the Giants, might also change. They could see him as either a potential ally or a greater threat than before, depending on how they perceive the power of Hera and Chaos combined.
His powers might become more related to the night. He could gain the ability to see clearly in the dark, like having night vision. Maybe he could also manipulate shadows, using them as a form of defense or offense. For example, he could create shadowy constructs to fight his enemies.
His water - based powers might become corrupted. Instead of just controlling clean, life - giving water, he could now also manipulate dark, poisonous waters from the depths of Tartarus. This would make his powers more dangerous but also more unpredictable.