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.
One interesting storyline could be Harry Potter discovers a hidden alchemist society within Hogwarts. He then learns ancient alchemical secrets that help him in his fight against Voldemort. For example, he might find a way to transmute substances to create powerful magical defenses.
A possible storyline is that the Thunderbird wand is passed down through generations in a family, but it has been lost. A young heir of the family embarks on a journey to retrieve it. In the process, they learn about their family's dark past and how the wand was once used for both good and bad. With the help of new friends, they overcome obstacles to reclaim the wand and restore their family's honor.
A really cool fanfic idea could be that the Minister of Magic is secretly under the influence of a powerful dark wizard. Harry Potter suspects something is wrong and starts his own investigation. Along the way, he discovers old secrets about the Ministry and has to fight against not only the dark influence but also the Ministry's bureaucracy that is trying to cover up the truth. This would involve a lot of mystery, action, and exploration of the complex power dynamics in the wizarding world.
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 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.
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 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.
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 how the characters deal with the increasing danger and fear during the second war. For example, Harry might be on a quest to find a powerful magical artifact that could turn the tide of the war.
One possible storyline could be the magical cowgirls joining Harry in his adventures at Hogwarts. They might use their unique cowgirl skills, like horse - riding and lasso - throwing, in a magical way to help Harry face challenges. For example, they could use their lassos to capture dark creatures.