One interesting storyline could be the white owl having a special mission given by Dumbledore. Maybe it's to deliver a secret message to Harry that holds the key to a new mystery at Hogwarts. For example, the message could lead Harry to an ancient hidden chamber in the Forbidden Forest that has a powerful magical artifact.
A possible story could revolve around the white owl being enchanted. It starts acting strangely and Harry has to figure out what's wrong. He discovers that a dark wizard from a rival school has put a spell on the owl to spy on Hogwarts. Harry then has to find a way to break the spell and protect the owl.
The white owl can be significant by being a symbol of hope. For instance, when Harry is in a really tough situation, like facing Voldemort alone in the Forbidden Forest, the white owl could suddenly appear, bringing with it a sign that help is on the way. This could boost Harry's morale.
One interesting storyline could be about Harry and Ginny raising their kids and dealing with the challenges of passing on the wizarding traditions while also protecting them from the dark forces that still lurk. Another might be about Ron and Hermione as parents, trying to balance their Ministry jobs with family life and teaching their children about the importance of friendship and loyalty, just as they learned in their own adventures at Hogwarts.
A possible storyline is that the wizarding world is trying to integrate more with the Muggle world after 19 years. There could be a plot where Harry and his friends are at the forefront of this movement. They might face opposition from some traditional wizarding families who are afraid of losing their pure - blood status or magical traditions. This could lead to all sorts of adventures and challenges for the characters as they try to bridge the gap between the two worlds.
One interesting storyline could be about the teammates going on a secret mission outside of Hogwarts. They might face new magical creatures and have to use their combined skills to survive.
One interesting storyline could be about creating a new magical creature in the Harry Potter RPG fanfic world. The character might discover a hidden spell that combines the essence of different animals, leading to a whole new species. This could then cause a stir in the wizarding community, with some seeing it as a great discovery and others fearing the unknown implications.
One interesting storyline could be Sirius Black surviving the Battle of the Department of Mysteries and then helping Harry train secretly for the final battle against Voldemort. He could teach Harry some advanced magic that he learned from his time in Azkaban and the Order of the Phoenix.
One storyline could be that the godmother is a time - traveler. She comes from the future to change certain events in Harry's life. Another could be that she has a special connection to a long - lost magical creature, and she and Harry have to work together to protect it.
One interesting storyline could be a dragon that forms a special bond with a character in the harem. Maybe the dragon has unique magical abilities that help the character in the story, like being able to sense danger. For example, it could warn the protagonist when dark wizards are approaching. Another could be a dragon that is actually a transformed wizard from a long - lost magical family, and his true form is revealed within the harem, causing all sorts of drama and new relationships to form.
Well, in some 'after the end harry potter fanfic', there are storylines that focus on the next generation. For example, Harry's kids might have to face a new, hidden threat that is related to the remnants of Voldemort's followers. They could discover old secrets that were buried during the last war and have to use their wits and newfound magic to overcome it. Also, there could be a story about how the Muggle - wizarding relations evolve, perhaps with more integration or new forms of secrecy.
One interesting storyline could be about the new generation of wizards facing a new dark magic threat that is a combination of old and new spells. They have to use their unique skills and the knowledge passed down from their parents' generation to combat it.