His character development would be extremely different. He would no longer be the 'chosen one' in the traditional sense. He might feel a sense of shame or guilt that he didn't have before. His self - confidence would take a huge hit. He would constantly be looking over his shoulder, wondering if people were judging him based on his father. His magic might also change. He could have an easier time with some of the more complex and darker spells, but at the same time, he would have to be extra careful not to let that power corrupt him. His moral compass would be all over the place as he tries to reconcile the fact that he is the son of the most evil wizard with his own desire to be a good person.
His character might become more assertive and self - reliant. At Durmstrang, which has a different culture than Hogwarts, Harry would have to stand up for himself more often. He'd also learn different magical techniques, which could make him more versatile in his magic use.
He'd probably be more refined in his manners, as French culture often emphasizes politeness and etiquette. His accent would be different, of course. And he might be more confident in expressing his emotions, as the French are generally more open about feelings. Also, his view of magic might be more influenced by French magical aesthetics, which could be more about elegance and style.
Well, he might become more confident and self - assured. After all, defeating the most powerful dark wizard of all time is no small feat. He could also be a bit more somber, having seen the true horrors of the dark side up close.
His character would likely be more confident. Growing up with a loving mother like Lily, he wouldn't have the insecurities that came from the Dursleys' treatment.
He might have enhanced Parseltongue abilities. Since Voldemort was a master of Parseltongue, Harry could have an even greater proficiency in communicating with snakes. He could also potentially have a stronger connection to dark magic, but be able to resist it more powerfully than others due to his upbringing with the Dursleys and his time at Hogwarts. His Patronus could be something more complex, perhaps a combination of a stag (from his father James) and a snake (from Voldemort), representing his dual nature.
He would likely be more confident. Growing up with his grandparents, who presumably love and support him, he wouldn't have the self - doubt that came from living with the Dursleys. He would be more self - assured in his magical abilities from the start.
Harry's character would develop very differently. In the original series, he was an orphan with a sense of loneliness. But as Cersei's son, he would be in a position of power from the start. He would be groomed for leadership in Westeros. However, his experiences at Hogwarts would introduce him to a different kind of community. His relationships with his classmates would be strained at first due to his family's reputation. But over time, he could learn to be more empathetic and use his power to bring about positive change in both Westeros and the wizarding world, breaking away from some of the more negative Lannister traits.
His character might be more distrustful. Since his parents left him, he may have a hard time trusting others, especially authority figures like Dumbledore. He could be more independent too, having to fend for himself from a young age. For example, he might not be as quick to accept help from others at Hogwarts.
His relationships would also change. With his new heritage, he might attract different kinds of friends and enemies. Some might be drawn to his connection with Athena, while others might fear or envy it. This would force Naruto to grow in new ways, learning how to handle different social situations and power dynamics that come with being associated with a powerful goddess in a different mythological context.
He'd likely be more inquisitive about different forms of magic. Instead of just relying on the spells taught at Hogwarts, he'd constantly seek out new magus - based knowledge.