Another way is through character development. Harry's character could develop differently in the presence of a Female Snape. She might offer different types of mentorship or guidance. Her teaching methods could be more nurturing or more strict in a different way than the male Snape. This would affect how Harry grows as a wizard and as a person, adding new layers to his character development that we didn't see in the original books.
They can show the darker side of the wizarding world. In the original books, we mainly see the positive aspects. But fanfictions about poachers can explore how greed and illegal activities exist in this magical world too. For instance, it can depict how some wizards are willing to break laws to get rare magical creature parts for potions or other dark arts.
By changing the setting slightly. In some 'Harry Potter Resolution Fanfiction', the wizarding world could be more open to the Muggle world post - war. This would create new storylines about how wizards and Muggles interact on a regular basis, something not fully explored in the original series. It could also lead to new magical - Muggle hybrids or new forms of magic that are influenced by Muggle technology.
These fanfictions can change the relationships between characters. If a character is made into a goddess, the way other characters interact with her will be different. For instance, if Harry has to seek help from a goddess - like Hermione, their friendship might take on a more formal or reverential tone. Also, new magical concepts are introduced. A goddess might have the power to manipulate time in a way that's not in the original books, which then creates new plot possibilities.
In 'Harry Potter travels fanfiction', new locations are often added. For example, Harry might travel to a hidden valley full of ancient magic that was never mentioned in the original books. It also adds new magical creatures. He could encounter a species that's unique to the place he travels to. New spells and magic systems can be introduced too. When he travels to a different wizarding culture, their way of using magic might be completely different from what he's used to at Hogwarts.
It shows the darker side of Hogwarts. In the original, bullying was there but not always fully explored. Fanfiction can dig deeper, like showing the long - term effects on the bullied characters.
It shows different sides of the characters. For example, if a minor character is the bully, we get to see their motives and how they interact with the main characters in a new light.
It can add by exploring the uncharted emotional territories of the characters. The original books didn't fully delve into every character's fear in extreme detail. Fanfic can do that. For instance, it can show how Ginny Weasley overcomes her fear of being possessed by Voldemort again.
They can add new elements by introducing Muggle military technology. For instance, the use of advanced Muggle weapons against magical creatures or dark wizards. This can change the power dynamics in battles.
Fanfiction often explores different relationships. In 'Harry Potter Lion Fanfiction', it might show new interactions between characters and the lion - themed elements, like how Harry might react to a lion Patronus that has a mind of its own. This can give new perspectives on the characters. Also, it can create new plotlines that were not in the original books, such as a mystery involving a lion - shaped amulet that holds great power in the wizarding world.
It adds mystery. The concept of the Abyss brings in an element that was not present in the original series. It gives a new place for adventures and exploration, like uncharted territories within the wizarding world. For example, it could be a place where lost magic or forgotten spells are hidden.