One interesting concept could be new magical abilities for the characters. For example, in some fanfictions, Harry might gain the power to control time in a more advanced way than just using the Time - Turner. Another concept could be different relationships between the characters. Maybe Hermione and Draco end up being friends or allies in a powerblock situation against a new dark force.
In Harry Potter powerblock fanfiction, a common concept is the exploration of alternate Hogwarts houses' powers. Instead of the traditional Gryffindor, Slytherin, Hufflepuff, and Ravenclaw traits, fanfic writers might create powerblocks based on combined or enhanced house characteristics. For instance, a powerblock that combines the loyalty of Hufflepuff with the intelligence of Ravenclaw could be really interesting.
In Harry Potter powerblock fanfiction, Severus Snape is often a popular character. His complex backstory and his skills in magic, especially potions and the dark arts, make him a very interesting figure in powerblock scenarios. He can be a powerful ally or a formidable adversary depending on how the fanfiction is written. Also, Neville Longbottom has his fans. His transformation from a shy and clumsy boy to a brave and powerful wizard in the original series gives him great potential in powerblock stories.
One interesting concept could be exploring more about the Marauders' time at Hogwarts. Fanfiction might expand on their adventures, like pranks they played that were never mentioned in the original book. Another could be different interpretations of Sirius Black's escape and his relationship with Harry during that time.
Some fanfictions in Harry Potter 2 might play with the idea of the basilisk having different powers or weaknesses. It could also explore the idea of a hidden connection between Ginny and the Chamber of Secrets that goes beyond what was in the original story. There might be fanfictions that change the role of certain characters, like making Neville a more central figure in solving the mystery of the Chamber.
One interesting concept could be alternate timelines. For example, what if Harry had been sorted into Slytherin instead of Gryffindor? It would completely change his relationships and the way the story unfolds. Another concept might be new magical creatures that are introduced in the fanfiction. These could add more depth to the wizarding world we already know.
One interesting concept could be a Kryptonian attending Hogwarts. Imagine a character with super strength, heat vision, etc., trying to fit in and learn magic at the same time. They might use their Kryptonian abilities in unique ways during Quidditch matches or in battles against dark wizards.
Well, sometimes the veil in fanfiction is used as a way to bring back dead characters. Imagine if a character found a way to communicate with those on the other side of the veil and managed to pull someone back. This could create really complex and emotional storylines, especially if there are consequences for messing with the natural order of life and death.
One interesting concept could be a saber duel between Harry Potter and a powerful dark wizard. The use of sabers in the magical world of Harry Potter can add a new and exciting dynamic to battles.
Another cool transformation idea is the transformation of inanimate objects into living things. Like a broomstick that transforms into a magical creature. This would completely change the dynamics in a story. It could be used for comical effect if the broomstick - now a creature - has a sassy personality and causes chaos in Hogwarts. Or it could be a serious plot point if it was part of a dark magic experiment gone wrong.
In the 'harry potter with wings fanfiction', an interesting concept might be the magical properties related to the wings. Maybe the wings are not just for flying, but they can also be used to cast certain spells or protect the wearer from dark magic. For instance, the feathers of the wings could be used in potions to give the drinker temporary flight abilities or enhanced magical powers.
Well, in some 'Harry Potter Rogue Fanfiction', there might be unique character developments. For example, a fanfic could explore what would happen if Neville Longbottom was the chosen one instead of Harry. It might show his journey of self - discovery and how he'd face Voldemort. Another interesting concept could be different magical creatures being more prominent in the story. Maybe a fanfic focuses on a group of wizards who study and interact with veelas in a way that's not in the original books. There could also be alternate timelines where events like the Triwizard Tournament turn out completely different, leading to new alliances and rivalries among the characters.