Well, a cool concept for 'rwby zombies fanfiction' would be a post - apocalyptic world where the remaining RWBY characters form a nomadic group. They travel around looking for resources and other survivors. Blake could use her stealth skills to scout ahead for zombie hordes. Yang, with her strength, could be the one to take on any zombies that get too close. And they could all be on a quest to find the origin of the zombie outbreak and stop it.
Well, the clash of two different universes. RWBY has its own unique style with huntsmen and Grimm, and when you add zombies from the Zombies concept, it creates a whole new dynamic. The characters having to adapt to fighting a new type of enemy, like how Ruby might use her scythe against a horde of zombies.
Another interesting fanfiction could focus on a new character who is a hybrid of a zombie and a werewolf, and their struggles to fit in both worlds. They would face discrimination from both sides, yet have unique abilities.
One idea could be a zombie apocalypse where the zombies are intelligent and can communicate with each other. Another could be a story about a group of survivors who discover that a certain type of music can control the zombies. A third idea is a fanfiction where a character has the ability to turn back into a human after being a zombie.
One interesting idea could be a crossover of different timelines within RWBY. For example, characters from the past meet the current ones and have to deal with the differences in their worlds. Another could be a crossover of different teams in unexpected ways, like Team RWBY having to team up with a rival team to face a common enemy that is more powerful than any they've faced before. And sometimes, there are crossovers that involve alternate versions of the characters, where their personalities or abilities are slightly different, which can lead to very unique and engaging storylines.
One interesting storyline could be the RWBY characters having to fight zombies in a post - apocalyptic Vale. They'd use their unique weapons and semblances against the hordes. For example, Ruby's speed could help her quickly dispatch zombies while Weiss could use her glyphs for protection and offense.
One idea could be a story where the zombies and humans collaborate on a big project like building a new community center. It would show their growth in working together.
One idea could be to have Gilgamesh as a powerful ancient being who awakens in the RWBY world. He could initially be seen as a threat but then form an unlikely alliance with the main characters. For example, he might offer his knowledge of ancient magic to help them fight against a new, powerful Grimm.
One idea could be that the Slenderman somehow enters the RWBY universe during a Grimm attack. The characters of RWBY initially mistake him for a new type of Grimm. But as they start to investigate, they realize he has very different and more sinister powers compared to the Grimm.
One interesting idea could be the redistribution of resources in the RWBY universe. For example, Dust, which is a crucial resource, might be shared more equally among the kingdoms. This could lead to a more balanced power structure and less inequality between the rich and the poor. Another aspect could be the role of the Huntsmen and Huntresses. In a communist - inspired RWBY world, they might work more for the collective good rather than for individual glory or profit. They could be more focused on protecting all people equally, regardless of their social status or wealth.
An OC in RWBY fanfiction could be a character who is a master of stealth. They could use their skills to gather intelligence for the teams at Beacon Academy. Their backstory could involve growing up in a family of thieves, but they decided to use their abilities for good. They might have a Semblance that allows them to become invisible for short periods of time, but it has a drawback like draining their Aura quickly. This OC could interact with characters like Blake, who also has some stealth - like abilities, and they could learn from each other.