What are some interesting concepts in 'jojo crossover fanfic'?

In some 'jojo crossover fanfiction', there could be a crossover with a historical setting. Like having Jonathan Joestar in ancient Rome. His gentlemanly ways and hamon powers would be quite out of place yet fascinating in that context. He could interact with Roman gladiators and senators, changing the course of history in this fictional scenario.

One idea could be to have the Stand users from JoJo interact with the Personas in a battle royale - style scenario. Maybe the JoJo characters are transported to the Persona universe and have to figure out how to use their Stands alongside the Personas to defeat a common enemy.

One interesting concept could be alternate endings. For example, in some fanfictions, the characters might have different fates compared to the movie. Another could be exploring the backstories of minor characters more in - depth. Maybe a fanfiction could focus on the life of one of the Hitler Youth members before they joined the group.

One interesting concept could be the crossover of Voltron with other popular sci - fi universes. For example, a crossover with Star Trek might involve the Voltron team having to navigate the complex politics and technology of the Federation. Another concept could be a crossover with a more fantasy - based universe like Lord of the Rings, where the Voltron lions could be seen as powerful magical beasts in Middle - earth. And in a crossover with a superhero universe like the Marvel Cinematic Universe, the Voltron pilots could team up with the Avengers to fight a common enemy.

One interesting concept could be the interaction between BlackWarGreymon and characters from different universes. For example, how he would react to meeting characters with very different moral compasses or powers. Another concept might be his journey in a new world created by the crossover, facing new challenges and making new alliances or enemies.

One interesting concept could be the crossover with other popular anime. For example, crossing over with 'Your Lie in April' might bring a unique blend of the two stories' emotional tones. The characters from 'oregairu' could interact with the musically - inclined characters of 'Your Lie in April', creating new and unexpected relationships and storylines.

One interesting concept is the combination of different Fate series characters in unexpected scenarios. For example, seeing characters from Fate/Stay Night interact with those from Fate/Grand Order. It can create unique storylines and character dynamics.

One interesting concept could be Pikachu crossing over with other Pokémon in unexpected ways. For example, a crossover with a water - type Pokémon like Squirtle might lead to Pikachu having to adapt to an aquatic environment, which could bring about new adventures and challenges.

One interesting concept could be a 'Warhammer' crossover with 'Lord of the Rings'. Imagine the orcs from 'Warhammer' interacting with the orcs from Middle - earth. Another could be a crossover with 'Star Wars', like the Space Marines teaming up with the Jedi or Sith in some strange alternate universe scenario. And a 'Warhammer' and 'Harry Potter' crossover where the magic of the wizarding world meets the dark and gritty world of 'Warhammer' would also be really cool.

One interesting concept could be the combination of different Sonic universes. For example, merging the classic Sonic games' world with the more modern Sonic Boom universe. This can lead to unique character interactions, like Sonic from the classic era meeting Sticks from Sonic Boom.