Yes, there are some fanfictions exploring such a wild and unorthodox concept. Fanfiction often takes creative liberties and twists the original story in unique ways. However, this goes completely against the established canon of the 'Harry Potter' series.
One main theme could be identity. Harry would be forced to reevaluate who he is if he were Voldemort's son. Another could be the nature of good and evil. Would he still be on the side of good? Also, there might be a theme of destiny. How would his supposed 'destiny' as Voldemort's son play out compared to his destiny as the Boy Who Lived?
One common theme is identity struggle. Harry has to figure out who he is in relation to being Voldemort's son. Another theme could be redemption. Maybe Harry tries to make up for his father's evil deeds. And there's often the theme of power. Whether Harry has the same kind of power as Voldemort or a different, more controlled power.
Harry could become more powerful in a way that scares his friends. Voldemort's training might focus on the Dark Arts, which are powerful but dangerous. This could change Harry's magic style. He may become more solitary as his new skills and knowledge set him apart from his Hogwarts friends who follow a more traditional path of magic.
In the world of Harry Potter fanfiction, it's highly possible. The fanfiction community often takes the established characters and storylines and twists them in unique ways. The relationship between Harry and Voldemort is already central to the original series, so imagining Harry as Voldemort's lost son is a way to expand on that relationship in a completely new and unexpected direction. It could lead to all sorts of interesting plot developments, such as how Harry would deal with this newfound identity, how the wizarding world would react, and what it would mean for the ongoing battle between good and evil.
In the realm of fanfiction, many out - of - the - box concepts are explored. While the idea of Harry being Voldemort's son and heir goes against the original 'Harry Potter' narrative, in fan - created stories, it might be used to create a whole new plot. For example, it could lead to a story where Harry has to struggle with his identity, being both the 'Chosen One' and the heir of the Dark Lord. It could also introduce new power dynamics and character relationships, as characters would have to re - evaluate their feelings towards Harry. Maybe some characters would try to use Harry's newfound heritage for their own gain, while others would try to help him come to terms with it.
Well, it changes it drastically. In the original, Harry is the hero against Voldemort. But in this fanfiction, the dynamic is completely different. Harry's abuse gives him a different background and the revelation of his relation to Voldemort makes him an outcast in a new way.
In this fanfiction, it could be that Voldemort has a premonition. He sees that if Harry Potter dies, it will lead to a series of disasters that will also destroy his own plans. So, in order to preserve the balance or to keep his long - term goals intact, he saves Harry. For example, if Harry's death causes an uncontrollable chaos in the wizarding world, Voldemort's rule over the dark forces might be disrupted. So he steps in to save Harry.
In Harry Potter 6, we learn more about Voldemort's past. We find out about his family history, especially his mother, Merope. His mother used a love potion on his father, Tom Riddle Sr., which led to his conception. Voldemort was born as Tom Marvolo Riddle. As he grew up in the orphanage, he already showed signs of his dark nature, like using his magic to harm other children. His journey to become the most feared Dark wizard had its roots in his difficult upbringing and his thirst for power.
Yes, there are some fanfictions exploring the idea of Harry Potter being Voldemort's brother. Fanfiction writers often like to create unique and alternative storylines. They might base this on some loose interpretations of the original lore, like the connection between their wands or some shared magical ancestry in a very creative and unorthodox way.