One interesting concept could be boggarts crossing over into different magical settings. For example, a boggart from the 'Harry Potter' universe could end up in a world of a different magical series. It might transform into things that are feared in that new world, creating unique and unexpected scenarios.
In boggart crossover fanfiction, the idea of boggarts taking on the forms of characters from other fandoms can be really cool. Say, a boggart in a crossover with a superhero universe could turn into the archenemy of a particular superhero, causing chaos among the heroes who have no idea how to deal with this strange new kind of threat.
One interesting concept could be the different forms the boggarts might take in the Fairy Tail universe. They could mimic the powerful magic of the guild members in unexpected ways, adding new and exciting plot twists.
One interesting concept could be the clash of different mythologies. For example, if Nyarlathotep were to cross over with Norse mythology, the chaos he represents could disrupt the order of the Nine Worlds. Another concept might be the interaction between Nyarlathotep and modern-day characters. It could explore how an ordinary person would react to the presence of such a malevolent entity from Lovecraftian lore. Also, the idea of Nyarlathotep influencing different historical events in a crossover fanfiction can add a new layer of depth, like how he might have affected the fall of the Roman Empire in a fictional scenario.
One interesting concept could be the combination of different alien species from various sci - fi universes with the Space 1999 setting. For example, mixing the Goa'uld from Stargate with the Moonbase Alpha crew. It could create really unique power dynamics and storylines.
One interesting concept could be Momonga in a different game world, like being transported to a fantasy RPG world. He might use his unique skills from the original setting to survive and thrive there.
One interesting concept is the collision of different character personalities. For example, when a heroic character from one universe meets a morally ambiguous one from another. Another is the exploration of different power systems. How would a magic - based character fare against a technology - driven one? Also, the cultural clashes can be fascinating. Different universes might have unique social norms and values, and seeing how characters adapt or react to these differences can create engaging storylines.
In Avatar 2009 crossover fanfiction, a cool idea is a crossover with a post - apocalyptic setting. The Na'vi could be faced with the challenges of a world destroyed by humans in a different way. They might have to deal with new threats and also learn from the survivors of the apocalypse. Also, a crossover with a superhero universe could be fascinating. Picture the Na'vi getting superpowers or having to deal with superheroes coming to Pandora.
One interesting concept could be a crossover with the Men in Black. Imagine the Ghostbusters teaming up with the MIB agents to deal with paranormal entities that are also of alien origin. They would have to combine their different technologies and ways of handling the supernatural and extraterrestrial.
One interesting concept could be Shreck crossing over with other fairytale characters in a modern setting. For example, Shreck meeting characters from 'Cinderella' in a bustling city. It can create humorous and unexpected interactions, like Shreck's gruff nature clashing with Cinderella's elegance.
A time - travel crossover within 'the simpsons crossover fanfiction' is also cool. The Simpsons could travel back in time to the Stone Age or forward to a futuristic world. In the Stone Age, they might have to deal with dinosaurs and primitive living conditions, and in the future, they could encounter advanced technologies that they don't understand.
Some concepts involve crossing DDLC with classic literature. For example, a crossover with 'Pride and Prejudice'. Monika could be like Elizabeth Bennet, intelligent and strong - willed. The interactions between the DDLC characters would then be filled with the same kind of social intrigue and romantic tension as in the original novel.