One major implication would be the reaction of her friends. Harry and Ron would be extremely shocked and confused. They might not trust her at first. Also, the entire wizarding community would be in an uproar. The good wizards would see her as a potential threat, while the dark wizards might try to recruit her.
The power dynamics in the wizarding world would change. If Hermione is Voldemort's heir, she might inherit some of his powers or knowledge. This could make her a very powerful figure, but also a very dangerous one. She would be caught between the two sides - the side that wants to use her for their own gain and the side that wants to destroy her because of her connection to Voldemort. It would be a complex and difficult situation for her to navigate.
In fanfiction, anything can be possible. It could be due to some dark magic manipulation in the story. Maybe a spell was cast long ago that linked Hermione's family line to Voldemort's in a way not known before. It might also be part of a complex plot where someone is trying to use Hermione's new - found connection to Voldemort for their own gain.
One implication could be a huge internal conflict for Hermione. She has always been on the side of good, and finding out she has such a dark connection would be a shock. She might question her own identity and her place in the fight against the dark arts.
Well, first of all, it would shock the 'Harry Potter' fandom. It would mean a radical change in the way we view Hermione. Her relationship with Voldemort in such a context would also change the power dynamics in the 'Harry Potter' world. Voldemort is the symbol of pure evil, and Hermione representing the good side being submissive to him would send a wrong message about morality and the fight against evil. Also, it might make many fans question the integrity of the fanfiction community if such a disturbing concept gains popularity.
One common plot twist is that Hermione discovers her heritage at a crucial moment, like when she's about to be attacked by Death Eaters and suddenly some hidden power related to her being Voldemort's heir emerges. Another is that she has to struggle with the moral implications of being related to such an evil figure.
One implication is enhanced power. He could potentially have greater control over the Kyuubi's chakra and use it more effectively. For instance, he might be able to transform into a more powerful form.
It would be very different from the original Harry Potter story. There would likely be a lot of changes in Hermione's character development. Maybe she would struggle with the dark side of her heritage. It could also involve a complex relationship with Harry and Ron, as they would have to deal with the fact that her father is their greatest enemy.
Often, fanfictions that claim Hermione is Voldemort's heir will create some convoluted backstory. For example, they might say that there was a secret affair between a distant relative of Hermione's and one of Voldemort's ancestors. This would then be used as the basis for her being his heir. However, this is pure invention for the sake of the fanfiction and has no basis in the real Harry Potter story. The original story has no such indication, but fanfiction allows for these wild and imaginative ideas to be explored.
Yes, it's a popular enough concept in the fanfiction community. Writers may be drawn to this idea as it allows for a lot of new plot developments. For example, it could change how Harry's relationship with the wizarding world is perceived. His connection to Voldemort in this way might make him an outcast in new and different ways than in the original story, and also open up possibilities for different kinds of magical powers or inheritances.
If Harry is the heir of Gryffindor in fanfiction, it could completely transform his character arc. He may discover ancient Gryffindor spells or artifacts that were previously unknown. This could lead to him being more involved in the history of Hogwarts and the wizarding world. He might also attract the attention of different magical creatures or beings who have a connection to Gryffindor. It could make his journey through Hogwarts and beyond much more complex and full of new opportunities and threats.
One implication is that he might have access to hidden knowledge or magic. Since the founders were very powerful, their heir could inherit some of their secrets.