One interesting plot idea could be exploring the alternate timelines more deeply. For example, what if the characters got stuck in a timeline where Voldemort had won? Another could be delving into the relationships between the next generation of characters in ways not fully explored in the original play. Maybe a story where Albus and Scorpius have to face a new dark wizard threat together, relying on their unique bond.
Some fanfictions might focus on the relationship between Albus and Scorpius in more depth. Maybe they discover a hidden magical bond between them that gives them unique powers, and they have to keep it a secret from everyone else while trying to use it to solve a mystery in Hogwarts that the teachers can't seem to crack.
One idea could be exploring the alternate timelines more deeply. For example, what if Voldemort had actually won in one of those timelines? How would the wizarding world look like? Another could be delving into the relationship between Albus and Scorpius in a more complex way, like their adventures outside of Hogwarts that test their friendship.
Well, you could write a fan fiction that focuses on the backstories of the characters. For instance, what was Scorpius' life like before Hogwarts? How did his family situation, with all the rumors about his father, shape him? Or you could write about Albus' struggles at Hogwarts from a different perspective, perhaps showing more of his internal thoughts and insecurities as he tries to live up to his father's name.
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 characters from Fma use their alchemical skills in the wizarding world of Harry Potter. For example, Edward could try to transmute a magical object using his knowledge of equivalent exchange. Another plot idea might be that the Philosophers Stone from Harry Potter has some connection to the alchemy in Fma, and characters from both universes have to work together to protect it from dark forces. Also, perhaps a character from Fma gets sorted into one of the Hogwarts houses and has to adapt to the magical school life while still having their own alchemical powers.
Well, in some fanfics, a plot twist might be that Voldemort has a secret heir who surfaces in the 'Cursed Child' era. This heir could initially seem like a villain but then has a change of heart due to interactions with the main characters. Also, there could be a twist where magic itself starts to malfunction in a way that no one expected, forcing the characters to find new ways to use their skills and knowledge. It could lead to some really creative solutions and alliances that were not possible before.
One idea could be to have characters from Fma use their alchemy skills in the wizarding world of Harry Potter. For example, Edward could try to analyze the magical properties of potions using his knowledge of equivalent exchange. Another idea is a crossover of the villains. Maybe Father from Fma teams up with Voldemort, creating a more complex and dangerous threat for the heroes of both worlds to face. It could also be interesting to see how the Philosopher's Stone and the power of alchemy interact, like if the stone could be used to enhance alchemical processes or vice versa.
One idea could be exploring the backstories of minor characters. For example, the life of Neville's parents before they were tortured by Bellatrix. Another could be a story set in a different wizarding school around the world and how it interacts with Hogwarts. Maybe a story about a group of students from Beauxbatons and their adventures during the Triwizard Tournament that we didn't see in the original books.
Harry Potter himself still remains popular in the fan fictions related to 'The Cursed Child'. Even though it's about the new generation, fans like to see how Harry has evolved as a father and how he still has that heroic side, but also his flaws and how he deals with his relationship with his son.
One idea could be exploring the Triwizard Tournament from the perspective of a new, original character. This character could be a transfer student who has a secret ability that helps Harry in some way during the tournament. Another plot could involve a mystery related to the Dark Arts that is intertwined with the events of the tournament, like a cursed object that is affecting the champions. Maybe a long - lost relative of one of the main characters shows up during year 4, causing chaos and confusion as they try to interfere with the events at Hogwarts.