What are the possible plot twists related to Hermione having a secret father in fanfic?

It could be a powerful wizard who has been in hiding all this time. Maybe someone with a dark past that the author wants to explore.

A possible plot twist could be that the wife is not who she seems. Maybe she has a hidden identity or a past that she has been hiding from the husband as well. And when the truth about her starts to surface, it throws the whole secret relationship into chaos. For example, she could be related to someone who is an enemy of the husband's family or business, and this revelation would put both of them in a very difficult situation.

One possible plot twist could be that Hermione's pureblood status was hidden to protect her from a dark wizard or an old family feud. When the truth comes out, she has to face unexpected enemies.

One possible plot twist could be that the Dursleys are actually under a spell that makes them act so horribly, and Hermione discovers and breaks it. Another could be that Hermione finds out she has some family connection to the Dursleys, which would be a huge shock for everyone.

One possible plot twist could be that the troll is actually under the control of a dark wizard. So when Harry saves Hermione, they realize that there is a much bigger threat at hand. Another twist could be that the troll turns out to be a transformed Hogwarts student, and they have to find a way to reverse the spell instead of just fighting it.

It could be Ron. Maybe they had a falling out or some complicated situation that led to Hermione keeping the baby a secret from him.

The plot could take a turn where Zabini is initially seen as the bad guy because of the kidnapping, but in reality, he is trying to protect Hermione from a greater threat. Maybe there's a prophecy that involves Hermione and Zabini, and the kidnappers are trying to stop the prophecy from coming true. Another possible twist is that Hermione's kidnapping leads to a discovery of a long - lost magic that Zabini's family has been searching for. This magic could change the balance of power in the wizarding world, and now Hermione is in the middle of it all.

One possible plot twist could be that Hermione discovers a hidden side of Dumbledore. Maybe she finds out about a secret mission he was on long ago that has consequences in the present. For example, she could stumble upon a hidden prophecy related to Dumbledore that changes the way she views him and the entire wizarding world's future.

Well, one possible plot twist could be that the father of Hermione's baby is not who everyone expects. Maybe it's a character who has been secretly in love with her all along. Another could be that there are some magical complications during the pregnancy that put Hermione's life at risk. And the baby could have some extraordinary magical powers even before it's born.

A possible plot twist could be that the person who removed her memories was actually her future self trying to protect the timeline. This would add a whole new layer of complexity to the story.