A time - traveling wizard from a far - off future in the magical empire. This character could bring knowledge of advanced magic that has not been discovered yet in the current time of the Harry Potter universe. They might be on a mission to prevent a future disaster from occurring in the past, but their actions could have unforeseen consequences on the present - day magical empire.
A magical creature that has the ability to speak and befriend Harry would be a great addition. For instance, a phoenix - like creature that is not as well - known as Fawkes. It could offer Harry advice and help him in the Triwizard Tournament, and their friendship would be a heartwarming aspect of the story.
A young Auror who is assigned to help guard Azkaban but has a secret sympathy for the prisoners. This character could add a new dynamic to the story as they struggle between their duty and their conscience.
A young dragon tamer from a far - off land could be an interesting addition. This character could have a deep understanding of dragons and offer Harry some advice on how to approach the task. Maybe they have a special bond with one of the dragons in the task and can communicate with it, which could add an unexpected twist to the story.
One idea could be exploring a different path for Neville Longbottom. Maybe in this fanfiction, he becomes the chosen one instead of Harry. He could discover a new type of magic that gives him an edge against Voldemort.
A new character could be a foreign exchange student from a far - off wizarding school. This student could bring with them unique magical abilities that are not commonly seen at Hogwarts. For instance, they might be able to control the elements in a way that is different from any known Hogwarts magic. They could also have a different perspective on the fight against Voldemort, which could influence Harry and his friends.
Neville would also make an excellent main character. He has a natural affinity for plants, and magical creatures are not that far off in the wizarding world. He could be the one to discover a new way to care for ailing magical creatures, perhaps using his knowledge of herbology. For example, he might find a plant that can cure a disease that's been affecting the unicorns in the forest.
Hermione would be really interesting in a gender swap scenario. As a male, he would still be highly intelligent but might have a different way of expressing it. He could be more forceful in debates in the classroom and might be more confident in taking risks with magic. His relationships with Harry and Ron would also shift. Instead of being the voice of reason in a more nurturing way, he could be more of a brash leader in their group, leading to new and different adventures.
Well, if there's a new character introduced, like a mysterious wizard from a far - off land who has unique magical powers that no one in the wizarding world of Harry Potter has seen before. That would be really interesting.
An old ex - Auror who now lives near Hogwarts. He could have a past connection to Voldemort and some knowledge about the Dark Arts used in the Triwizard Tournament. He becomes an unofficial mentor to Harry, teaching him some unique spells and strategies that are not part of the regular Hogwarts curriculum. This character could bring a new perspective and a bit of wisdom to the story.
How about a transfer student from a different wizarding school? They could have different magical knowledge and traditions. Maybe they know something about ancient magic that is related to the Chamber of Secrets. They could bring a fresh perspective to the whole mystery.