Well, one possible plot development could be Harry struggling to control his new werewolf nature. He might have to deal with the stigma within the wizarding world. For example, some might fear him or treat him differently. Another aspect could be his relationships changing. His friends might be initially shocked but then try to support him in finding a way to manage his condition. Maybe he also discovers new powers or abilities related to his werewolf side that he has to learn to use properly.
One plot development could be that Harry starts to have a connection with other werewolves. He might learn their ways and their history. This could lead to a split in the werewolf community, with some seeing Harry as a hope for change and others seeing him as a threat. His bitten status could also affect his studies at Hogwarts. Teachers might be unsure how to handle his situation, and he could either fall behind or find new ways to learn that are more in tune with his werewolf nature.
Perhaps a plotline where Harry's werewolf bite changes the way the wizarding community views him. Some might see him as a threat, while others might see him as a symbol of the intersection between different magical beings. This could lead to a whole new set of challenges and alliances for Harry.
Perhaps the bite leads to a rift between Harry and his friends. Some of his friends might be afraid of him now that he's a werewolf, while others might be over - protective. This could cause a lot of internal conflict within the group. Also, it could lead to Harry having to seek help from unexpected sources, like some of the more reclusive or misunderstood characters in the wizarding world who have experience with werewolves.
Perhaps a plot twist is that when Hermione is bitten, she gains a special connection to the werewolf pack. Instead of being an outcast, she becomes a sort of mediator between the wizarding world and the werewolves. This causes a stir in both communities as they have to re - evaluate their views on werewolves and those bitten by them.
I'm not sure about a specific one but generally, in such fanfictions, the author often explores Harry's struggle with his identity. He was a hero before, but now being a werewolf, he has to face prejudice. Some fanfictions might show him finding new powers related to his werewolf side. For example, he could have enhanced senses that help him in battles or in solving mysteries. It's all about how the writer wants to take the character in a new and different direction.
One interesting plot development could be how Harry and Daphne first come to terms with their betrothal. Maybe at first they are reluctant, but as they spend time together, they discover they have more in common than they thought.
In some 'Harry Kidnapped by Pettigrew' fanfictions, one interesting plot development could be Harry's struggle to escape. He might use his wits and the little magic he can muster in captivity. For example, he could try to communicate with his friends through magical means that Pettigrew doesn't suspect. Another aspect could be Pettigrew's motives. Maybe he's being blackmailed by some dark forces to kidnap Harry, which adds a layer of complexity to the story.
One interesting plot could be Harry having to deal with the different social expectations placed on girls. For example, in the wizarding world, there might be different rules or attitudes towards female students in Hogwarts. He might struggle with how to act in a way that is considered 'appropriate' for a girl while still maintaining his own identity.
Another plot development could be that the Dursleys try to keep Harry's magic a secret from the wizarding world, fearing they will lose him. But as Harry grows older, he starts to find ways to reach out to the magical community on his own, like making friends with a stray magical creature that finds its way into the Dursleys' backyard.
One possible plot development could be Harry finding a new magical family or community that accepts him wholeheartedly. Maybe he discovers a hidden magical society that has been observing him at the Dursleys and now offers him a real home and proper magical training.
Typically, it starts with the event of Harry getting bitten. Then, it often shows his immediate reaction, like shock and fear. Next, his friends' reactions are explored, whether they are accepting or afraid. The plot may then develop as Harry tries to find a cure or learn to control his new werewolf nature. For example, he might seek help from Lupin or other werewolves.