Well, you could do a story where Voldemort teams up with the Zerg Overmind. Voldemort wants to take over the Starcraft universe as well as the wizarding world. The heroes from Starcraft, like Jim Raynor, along with Harry Potter and his friends, have to fight against this evil alliance. They would combine magic and technology to counter the dark forces. It could be really exciting to see how spells interact with Starcraft weapons and abilities.
One idea could be to have the Hogwarts houses compete in Starcraft battles. Gryffindor might use bold and aggressive strategies, like the Terrans. Slytherin could be sneaky like the Zerg, using hidden units and surprise attacks. Hufflepuff might focus on building strong defenses, similar to how Protoss shield up. Another idea is to have Harry Potter characters possess unique Starcraft units. For example, Harry could control a powerful hero unit with magic - based attacks.
A cool concept would be a crossover where the Starcraft races discover the wizarding world. The Protoss, being highly advanced, are intrigued by magic. They might try to study it and incorporate it into their technology. The Terrans could see the potential of magic for warfare and start recruiting wizards. The Zerg, on the other hand, might view the wizards as a new source of genetic material or a threat to their dominance. This could lead to all kinds of conflicts and alliances between the two universes.
One idea could be a story where the heroes from Warcraft and Starcraft team up to fight a common cosmic threat. For example, Arthas from Warcraft and Jim Raynor from Starcraft might join forces. Their different abilities and leadership styles would create an interesting dynamic.
One idea could be that Hermione Granger somehow gets transported to the world of Tangled. She could use her magic to help Rapunzel understand the true potential of her long hair, perhaps in a more scientific way. For example, Hermione might discover that Rapunzel's hair has some sort of magical core similar to a wand. Another idea is that the Dementors from Harry Potter somehow end up in the Tangled world. Rapunzel, with her positive and strong - willed nature, could be one of the few who can resist their soul - sucking powers and then teach others in her world how to do it. And maybe Harry Potter himself could be on a quest in the Tangled world, looking for a magical object that is said to be hidden there, and he teams up with Flynn Rider and Rapunzel to find it.
One idea could be that Hogwarts students discover Pokemon in the Forbidden Forest. They could start training them as part of a new magical - creature - handling class. Another idea is that a powerful Pokemon like Mewtwo ends up at Hogwarts and causes chaos among the students and teachers, who have to use their magic to deal with it. Also, a wizard could accidentally cast a spell on a Pokeball and create a new, hybrid Pokemon - magic creature.
One idea could be that Thor somehow ends up at Hogwarts. Maybe he's on a mission in the wizarding world and his Asgardian magic interacts in strange ways with the magic of Hogwarts. For example, his lightning powers could cause some chaos during a Potions class when it accidentally zaps a cauldron.
One idea could be that the Hogwarts students take a field trip to Disneyland. They could be amazed by the magical rides and meet Disney characters. For example, Hermione might be fascinated by the technology behind the rides and try to figure out how they work while Harry and Ron are more interested in the food. Another idea is that Disney villains team up with Voldemort. The Evil Queen could use her magic mirror to help Voldemort find Harry Potter. And Maleficent could use her dark powers to assist in the battles at Hogwarts.
One interesting idea could be a crossover with a fairytale world. For example, Hermione could be transported to a world like Cinderella's and meet a prince who has some magic similar to that in the Harry Potter universe. This would create a new kind of romantic dynamic where she has to balance her Hogwarts knowledge with this new, more traditional fairy - tale romance.
Perhaps the BTS members are magical creatures in the Harry Potter universe. Jin could be a Veela, with his good looks and charm that can sometimes entrance people, much like the Veela's allure in the books. Suga could be a Kneazle, independent and with a sharp mind, able to sense things others can't, just as he often has a unique perspective in his music - making. And they could all be on a quest to find a special magical object that has the power to combine the magic of their world (the BTS world) and the wizarding world of Harry Potter, and along the way, they meet Harry, Hermione, and Ron and form an unlikely alliance.
One idea could be to have the Gallagher family from 'Shameless' somehow end up at Hogwarts. Maybe Fiona could be mistaken for a new teacher and cause chaos in the school with her no - nonsense attitude. Another could be Lip getting involved in a magical experiment gone wrong with Hermione. He might use his street - smart knowledge to help her out in a different way than she's used to.
One idea could be a story where the dementors from Harry Potter cross over into the Creepypasta world. They could start spreading their despair in the already creepy and dangerous Creepypasta settings, making it even more nightmarish. Another could be a crossover where a Harry Potter character like Hermione accidentally enters a Creepypasta realm and has to use her magic and wits to survive among the various Creepypasta entities.
Another idea might be the crossover with historical settings. Picture Hogwarts in the middle of a medieval European kingdom. The contrast between the wizarding world and the historical context can lead to really engaging storylines, like how the wizards deal with the political and social structures of the time.