Perhaps Albus discovers that his Parselmouth ability is linked to a prophecy. As he tries to understand the prophecy, he has to deal with the fact that some people in the wizarding world see Parselmouths as dark wizards. He teams up with some unlikely allies, like a group of Gryffindors who initially distrusted him but come to see his value. They embark on a journey to fulfill the prophecy and save the wizarding world.
One possible fanfiction could be about Albus Potter discovering his ability to be a Parselmouth in a very secretive way. Maybe he accidentally uses it in front of his friends and they are both shocked and a bit scared at first. But then they realize that Albus can use this ability for good, like communicating with snakes to find hidden passages in Hogwarts that are protected by snake - related magic.
A story could be set around the idea that there is a hidden society of Parselmouths who have their own code and magic. Harry gets drawn into this society and has to learn their ways and secrets. He might find that Parseltongue is not just about talking to snakes but can be used in more complex and unexpected forms of magic, like unlocking hidden chambers in Hogwarts that are only accessible through Parselmouth incantations.
One plot idea could be Hermione discovers her Parselmouth ability during a dangerous encounter in the Forbidden Forest. She uses it to communicate with a hidden snake colony that holds the key to an ancient magic secret. Another could be that she has to hide her ability from her friends at first because of the stigma associated with Parselmouths, but then it becomes crucial in a battle against dark wizards.
One idea could be Albus and Scorpius getting lost in an alternate magical dimension during one of their adventures. They have to rely on their wits and newfound magic to find their way back. Another could be Albus discovering a long - lost family secret that changes his perception of his family's legacy.
One idea could be that Albus Severus Potter discovers a hidden diary of Snape's. In it, he finds out about Snape's true feelings and sacrifices in a more personal way. This could lead to him having a newfound respect for Snape and trying to change the way others at Hogwarts view Snape's legacy.
One plot idea could be that Delphini, initially set on following in her father's (Voldemort's) footsteps, has a change of heart due to her interactions with Albus Potter. Maybe they are forced to work together on a magical mystery that threatens Hogwarts. As they solve it, Delphini starts to see the value in the wizarding world that Albus represents.
One idea could be Albus Severus Potter traveling back in time to meet his father, Harry Potter, as a young student at Hogwarts. He could then help his father in some of the early battles against Voldemort, using the knowledge he has from the future. This would create a lot of interesting interactions and changes to the original story line.
Well, he could be de - aged due to a cursed potion. As a de - aged character, he might have to rely on his younger siblings more, which would change their family dynamics. For example, his sister could be the one protecting him for a change.
A cool idea could be that Albus Severus Potter discovers he has a unique magical ability that no one in his family has ever had. This ability could lead him on a quest to find out more about its origin, which might be tied to an ancient and forgotten part of wizarding history.
One plot idea could be a story set in an alternate universe where Minerva and Albus got married in their youth. They could face challenges from the wizarding society that disapproves of their union due to their positions at Hogwarts. For example, some might think it would create a conflict of interest. Another idea is a time - travel fanfic where they get married in a different era and have to adapt to the different cultural and magical norms of that time.