A possible plot could be that Drizella is cursed, and Henry, being the son of Snow White and Prince Charming, has a unique connection to the magic that can break the curse. They embark on a quest to find the ingredients for a potion to break the curse. Along the way, they meet old characters from the Once Upon a Time universe who either help or hinder them. They also have to deal with their own personal issues. Drizella has to confront her past and her insecurities, while Henry has to prove himself as a hero without relying too much on his family's legacy.
One idea could be exploring Drizella's backstory before she became so bitter. Maybe she had a true love in her youth that was torn away from her, which led to her descent into jealousy and meanness.
Well, a plot could involve time - travel. Henry somehow gets sent back in time to when Regina was first starting to embrace her dark side. He tries to change her path by showing her the future and how she could have a loving relationship with him. Another interesting plot might be that there's a curse on Henry that makes him forget Regina, and Regina has to go through a series of trials to break the curse and make him remember their relationship. Also, they could be on a quest to find a magical artifact that can restore all the good memories of the people in Storybrooke that Regina once took away, and this journey brings them closer together.
Perhaps Henry and Ivy find an old prophecy that somehow involves them. They then set out on a journey to figure out what it means and how they can fulfill it or avoid it. Along the way, they meet different people who either help or hinder them in their quest.
Their relationship could start off rocky. Maybe Drizella is initially suspicious of Henry because of his ties to the heroes in the Once Upon a Time world. But as they are forced to work together on a task, they start to see each other's good sides. Henry might see Drizella's vulnerability beneath her tough exterior, and Drizella could come to respect Henry's intelligence and determination.
One idea could be that Henry discovers a hidden part of Neverland that Peter Pan had forgotten. Maybe it holds the key to a power that can change the fate of both Neverland and Storybrooke. For example, it could be a magical spring that has the power to grant immortality or the ability to rewrite memories.
A third plot idea could involve Henry coming out to his best friend. His best friend could be his biggest supporter from the start and help him navigate the new world of being openly himself. They could go to pride parades together, and the friend could introduce Henry to other members of the LGBTQ+ community, which helps Henry to feel more accepted and confident in his identity.
Maybe Henry and Violet start having shared dreams that seem to be premonitions of a coming danger to Storybrooke. They decide to investigate together, following clues that lead them to an ancient magic artifact. Along the way, they face challenges from an unknown villain who doesn't want them to uncover the truth.
Drizella's story in Once Upon a Time is part of the elaborate narrative that combines various fairy tale elements. She has her own arcs and interactions that contribute to the overall plot.
Drizella could be shown as a sympathetic character if we explore her backstory. Maybe she was always in the shadow of her sister and mother, and they constantly put her down. This could lead to her developing a tough exterior to hide her insecurities. For example, her snobbish behavior could be a defense mechanism.
One idea could be exploring the backstories of the lost boys in more detail. Maybe one of them has a hidden connection to a character from the outside world. Another plot could involve a new villain coming to Neverland who has a different kind of magic that challenges Peter Pan. Also, a story about Wendy's granddaughter returning to Neverland to find a lost family heirloom could be interesting.