One common theme could be friendship. Imogen might form new and unique friendships with the main characters like Harry, Ron, and Hermione. For example, she could be the one to help Harry through a difficult time when his other friends are preoccupied.
Sure. You can check out websites like Fanfiction.net. There might be some stories where Imogen is a new character added to the Harry Potter universe, perhaps a student in Hogwarts who has an interesting backstory and gets involved in the main plotlines in creative ways.
One possible fanfic could be about Imogen and Agreus going on an adventure outside of Carnival Row. They might face some challenges from the human - fae tensions that exist in the show. Imogen could use her wits and Agreus his strength to overcome obstacles.
Well, Imogen is indeed present in the comics. Her character adds a unique element to the overall narrative and interacts with other characters in interesting ways.
No. The 'Harry Potter' series is about friendship, courage, and equality. Slavery goes against these values, so this kind of fanfiction is not acceptable to most in the fandom.
Definitely not. The original Harry Potter books promote values such as acceptance, courage, and unity. Genocide is the opposite of all these. Fanfiction should, at least to some extent, stay true to the spirit of the original work, and a genocide - themed fanfiction is far from that. It can also be very offensive to many fans who love the series for its positive and hopeful messages.
Well, in Harry Potter fanfiction, he could be in any kind of world. Maybe a world where wizards rule openly, or one where magic is fading away. It's really up to the creativity of the fanfic writer.
Another possible betrayer could be Dumbledore in some darker fanfictions. He might have a hidden agenda all along. He could be using Harry as a pawn in a much larger and more sinister game. And when Harry starts to figure things out and goes against Dumbledore's plans, Dumbledore betrays him to keep his own plans on track.