Well, many avid readers and fans of the Harry Potter series were familiar with fanfiction. It's a way for them to extend and imagine new adventures within that magical world. Some even write their own fanfics to share with the community.
If Harry Potter knew Bulgarian fanfiction, it could be really interesting. Maybe he would be amused to see how fans from Bulgaria have imagined different scenarios for him and his friends. He might learn some new perspectives on his own adventures that he hadn't thought of before.
If the Joker knew Harry Potter fanfiction, it would be a very odd combination. He could potentially use the knowledge of magic to enhance his already dangerous and unpredictable nature. He might take inspiration from the Death Eaters and form his own group of 'Dark Followers' in Gotham. He could also use the idea of Horcruxes and try to create something similar to ensure his immortality in his battles against Batman. However, it's also possible that he would simply mock the concepts in the fanfiction, seeing them as too 'wholesome' compared to his own brand of chaos.
One popular fanfiction idea could be Harry Potter, tired of being constantly in dangerous situations, decides to focus more on his studies. He could be exploring ancient magic spells in the library, collaborating with Hermione on some really complex potions theory, and impressing his professors with his newfound dedication to learning.
Dumbledore could be the one to teach Harry about Haki. Dumbledore, with his vast knowledge of magic and the unknown, might have come across Haki in his travels. He could recognize the signs of Haki in Harry and take it upon himself to guide Harry in understanding and controlling this new power. He would use his calm and wise approach, just like when he teaches Harry about other aspects of magic.
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.
One interesting fanfiction could be about baby Harry's first magical experiences even before he went to Hogwarts. Maybe he unknowingly made his toys levitate when he was really young, and his aunt Petunia was terrified but couldn't figure out what was really going on.
The seventh novel in the Harry Potter series, Deathly Hallows, was written by JK Rowling. There is no official release date yet, but January 2021, Deathly Hallows will be available for free at Harry Potter readers 'clubs in the UK, US and Canada on January 19, 2021. In addition, in May 2021, the novel was published by the American publishing company H.P. Lovecraft Lovecraft.
In this fanfiction, she might face a lot of internal conflict. On one hand, she has the values of the wizarding world like friendship and courage from Harry Potter's side. But on the other hand, Loki's influence might bring out a more mischievous and self - serving side. She could struggle to find her place in Hogwarts or in the wizarding community in general, as others might be suspicious of her due to her Loki connection.
It could be a character whose fate was changed in the fanfiction compared to the original book. Maybe it's a minor character who was supposed to die but didn't.
The person who killed Barty Crouch in fanfiction is highly unpredictable. It could be a dark wizard who emerges from the shadows or a close ally with a hidden agenda.