One idea could be a story about a new character who arrives at the hotel during the events of the third movie. This character could have a special power that both helps and causes chaos among the hotel guests. For example, they might be able to communicate with sea monsters in a unique way, leading to some hilarious misunderstandings.
You could also write a fanfiction where some of the human guests on the cruise start to develop their own mini - adventures. They could form a little group and try to explore parts of the ship that are off - limits. Along the way, they encounter various monsters and have to use their wits to get out of tricky situations, all while the main monster characters are preoccupied with their own storylines.
Another idea is to focus on the relationship between Dracula and Mavis in a different light. Maybe in the fanfiction, Mavis discovers a long - lost diary of Dracula from his younger days, and through reading it, she gains a deeper understanding of her father and his past, which in turn strengthens their bond even more during the cruise adventure in Hotel Transylvania 3.
One plot idea could be a new adventure where Dracula's grandson starts to show some unexpected powers that no one in the hotel has seen before. This could lead to a series of comical and exciting events as they try to figure out how to handle it.
One idea could be a story where Dracula's daughter Mavis decides to explore the human world on her own without her father's knowledge. She could encounter a group of friendly humans who teach her about their culture and she in turn shows them the unique aspects of the monster world. This could lead to a series of comical and heartwarming situations as she tries to keep her adventure a secret from her over - protective father.
One idea could be to create a fanfic where Dracula's daughter Mavis goes on an adventure outside the hotel and discovers a new magical realm that has a different approach to monster - human relations. It could explore how she tries to bring back new ideas to Hotel Transylvania.
One idea could be a crossover where a Twilight vampire visits Hotel Transylvania. Maybe they get into a friendly competition about who has the best vampire abilities. For example, Twilight vampires have their super speed and strength, while the Hotel Transylvania vampires have their own unique skills like shape - shifting into bats. Another plot could involve a love story between a character from Twilight and one from Hotel Transylvania, which would be a really fun and different take on the two universes.
One idea could be Naruto somehow gets transported to the world of Hotel Transylvania 2. He could use his ninja skills to help Dracula protect the hotel from new threats. Maybe he teaches the vampire kids some cool ninja moves in exchange for learning about vampire powers.
One idea could be a fanfiction about Mavis and Dracula going on an adventure together to discover a new magical place for the hotel. This would focus on their relationship and the expansion of the hotel's world.
One idea could be that the female mummy discovers modern fashion in the hotel and tries to incorporate it into her ancient style, leading to some comical fashion disasters. For example, she might try to wear a miniskirt over her mummy wrappings and struggle to walk. Another plot could involve her forming an unlikely friendship with a human guest. They could bond over their shared love for a particular type of music, like ancient Egyptian chants and modern pop, and together they start a small music club in the hotel. A third plot idea is that she gets jealous of another female monster in the hotel who is getting more attention from the male monsters. So, she decides to go on a self - improvement journey to become more 'appealing' in her own unique mummy way.
One appropriate idea could be Mavis exploring new parts of the world outside the hotel. It could be about her adventures in different human cities, learning about new cultures and making new friends. This would stay true to her curious and adventurous nature shown in the movie.
Maybe in the fanfiction, there's a plot where Dracula and Jonathan have to team up to save Mavis from an ancient vampire curse. They'd have to travel to different parts of the Transylvanian underworld and face all sorts of spooky creatures along the way. It would show their growing friendship and mutual respect for each other.
One idea could be that Naruto is on a mission in a world similar to that of Hotel Transylvania. He could encounter the unique creatures there and have to team up with some of the hotel residents, like Dracula, to defeat a common enemy. Maybe an evil ninja has found a way to drain the life force of the supernatural beings in the hotel and Naruto's skills are needed to stop it.