Often, Harry's development is more complex. He has to deal with two different worlds, the muggle world where he was raised and the wizarding world he belongs to. This dual - world experience can make him more adaptable but also more conflicted. For example, he may love his muggle family in some ways but also feel a sense of betrayal when he realizes they've been trying to keep him from his true nature. His relationships with other characters, like Hermione and Ron, may also be different as he has this unique background.
In this kind of fanfiction, Harry often becomes more proficient in potions and other areas that Snape is good at. His relationship with Snape also makes him more empathetic towards Snape's past and the Slytherin house in general. He may not be as quick to judge people based on their house. Also, he might develop a more complex view of the wizarding world's politics, as Snape is deeply involved in some of the darker aspects of it.
In the original, Harry was more of a reactive character, often responding to the threats of Voldemort. But as Orion Black, he can be more proactive. He has the knowledge of what's to come, so he can start making changes early on. For example, he might be more involved in the wizarding politics to prevent the rise of dark forces, which is different from Harry who was mainly focused on his personal battles against Voldemort.
Some fanfictions might have a plot where the muggle family tries to 'cure' Harry of his magic. They could take him to various doctors or therapists thinking he has some sort of mental disorder. Meanwhile, Harry is feeling more and more isolated and confused. When he does meet someone from the wizarding world, like a Hogwarts teacher who comes to check on him, it's a moment of great relief and the start of a new journey.
The character development in the fanfiction is quite distinct from the original. Since fem Harry is now Black, her cultural background becomes a huge part of her character. In the original, Harry was an orphan with a mostly British - influenced upbringing. Now, she may have a different family history, perhaps one that is rich in Black magical traditions. This would shape her values and beliefs differently. Also, as a female, her relationships with other characters will change. She may form different friendships and rivalries. For example, she might have a closer bond with female characters who also face discrimination in the wizarding world, and she may be more empathetic towards their struggles compared to the original Harry.
In such fanfiction, Muggles can be shown in different lights. Some portray them as simple and uncomplicated, living their ordinary lives without any knowledge of magic. However, there are also fanfictions where Muggles are more curious or even a bit envious of the magical abilities of Wizards. They might be depicted as trying to find out about the wizarding world despite the secrecy.
Character development in different house Harry Potter fanfiction is really interesting. For Gryffindor, it's about facing fears head - on and growing in that sense. Like Harry in the original series, but in fanfiction, other Gryffindor characters can have their own arcs. Slytherin characters might develop from being seen as the 'bad guys' to having more depth. They could learn that there are different ways to be ambitious. Hufflepuff characters may find their voices and learn to stand up for what they believe in, while still maintaining their kind - hearted nature. Ravenclaw characters can grow in their ability to think outside the box and apply their intelligence in new situations.
Well, in many of these fanfictions, Harry's character development is centered around his healing process. He starts off as a damaged individual because of the abuse. As the story progresses, he might learn to trust again, which is a big step in his development.
It can expand the fandom. Muggles reading fanfiction may bring in new ideas and interpretations that can attract more people to the overall Harry Potter community. For example, a really creative fanfiction might get shared around and draw in new fans.
The most obvious difference is Harry's identity. In the original, he is a Potter, which shapes his story in many ways. In this fanfiction, not being a Potter means different relationships and a different standing in the wizarding world.
Harry's character might develop a more refined sense of magic. With the Malfoys' influence, he could become more aware of the subtleties of pure - blood magic. His self - confidence could also change. Instead of relying on his Gryffindor bravado, he might learn to be more calculating like the Slytherins. For example, in dealing with school bullies, he might use his wits rather than just charging in.