One plot idea could be Harry discovering a new, ancient magic that gives him an extreme boost in power. He could use this power to reform the wizarding world's laws for the better. Another could be that Harry has a power transfer from an old, powerful wizard and has to learn to control it while facing new dark threats. Maybe he uses his newfound power to create a school for underprivileged young wizards and witches.
A plot might involve Harry having the power to time - travel at will. He could go back to key moments in wizarding history and change things for the good of the present. For example, he could prevent certain dark wizards from ever rising to power. Or, he could have the power of telepathy and be able to read the minds of all the Death Eaters, which would give him a huge advantage in the fight against the dark side.
Well, perhaps Harry gets a power that allows him to communicate with magical creatures on a deep level. He then unites all the magical creatures in the wizarding world, from house - elves to dragons, against a common enemy. He could also gain the power of super - speed, which he uses to quickly rescue those in danger during the chaos of a new dark wizard's attacks.
I really like 'The All - Powerful Harry'. It shows Harry having a unique power that allows him to manipulate magic in ways not seen before. The story does a great job of exploring the consequences of such great power. There's also 'Harry Potter: Power Surge' which is a bit more action - packed. It has Harry using his newfound powers to battle against a new breed of dark creatures.
One plot idea could be that Harry's sister is secretly a powerful witch with unique abilities. For example, she might have the power to communicate with magical creatures in a way no one else can. This could lead to her getting involved in a plot to save a rare and endangered magical creature that is being hunted by dark wizards. Another idea is that she discovers a hidden prophecy related to her and Harry that changes the course of their fight against Voldemort. She could be the key to a new spell or magic that can defeat Voldemort once and for all.
One plot idea could be that the nanomachines are secretly placed in Hogwarts by a dark wizard. They start to manipulate the magic in the school, causing strange things to happen like spells going haywire. Harry, with the help of his friends, has to figure out how to stop the nanomachines before they destroy the balance of magic at Hogwarts.
She could inherit some of the traits from Harry's past enemies in a strange way. Maybe she has a bit of Voldemort'sParseltongue ability which scares her at first. But then she learns to use it to her advantage, like being able to enter hidden areas where only Parseltongue speakers can go. This could lead to her finding lost magical artifacts that have been hidden away for centuries. Also, her relationships with her classmates could be complex. Some might be jealous of her, while others might try to use her for her father's fame.
Well, perhaps his husband is a powerful auror as well. They team up to fight against a new dark force that is emerging in the wizarding world. Their relationship adds an extra layer of depth to their fight as they not only have to protect the world but also their relationship. They might face challenges from traditional wizarding families who are not accepting of their relationship at first.
In a fanfiction, Harry might seek power to change the wizarding world for the better. He could start by trying to reform Hogwarts, believing that with more power he can make the school a more inclusive and just place. He might face opposition from the traditionalists, who see his quest for power as a threat to the old ways. This would lead to a series of battles, both magical and political, as Harry tries to assert his vision for a new wizarding order.
One idea could be that the Power Pack members visit Hogwarts during an exchange program. They could introduce their unique superpowers to the wizarding world and learn magic in return. Maybe they help Harry and his friends in a dangerous situation using their powers.
One interesting plot idea could be the Guardians of Power having a secret mission to protect a long - lost magical artifact that has a connection to Harry Potter's past. Maybe it's an ancient spellbook that could change the balance of power in the wizarding world.
One plot idea could be that Harry discovers a baby dragon in the Forbidden Forest. He decides to hide and protect it from the Ministry, which would want to destroy it. As the dragon grows, it helps Harry in his battles against the Dark Arts, using its powerful fire-breathing ability to fend off Death Eaters. Another could be that the dragon is a shape - shifter and can turn into a human form, becoming Harry's closest confidant at Hogwarts, sharing secrets and helping him solve mysteries.
Perhaps Harry's different father could be a Muggle - born wizard who was experimented on by dark wizards. This would give Harry a connection to a darker side of magic that he has to come to terms with. He might have inherited some unique powers or curses from his father. Or his father could be a wizard who was in hiding from Voldemort for reasons other than what we know in the original story. This could change the dynamic of the prophecy and Harry's role in the fight against Voldemort.