A possible plot could be that the Red Queen is actually a long - lost relative of one of the RWBY characters. This discovery causes a stir within the group as they try to figure out how to handle this new relationship while also dealing with the ongoing threats in their world. The Red Queen's presence also uncovers some secrets about the character's past and the history of Remnant.
One idea could be a story where the Red Queen character has to team up with the RWBY team to fight a new, powerful Grimm that is immune to normal attacks. This would force them to combine their unique abilities in unexpected ways.
One plot idea could be a crossover where the characters from RWBY and Red Velvet are in a singing competition in a magical world. It combines the combat elements of RWBY with the music and charm of Red Velvet.
One plot idea could be the characters from Red vs Blue and RWBY teaming up to fight a common enemy. For example, a powerful Grimm that has somehow entered the Red vs Blue universe. Another could be the Reds and Blues getting involved in the Beacon Academy's classes and causing chaos with their unique combat styles. Maybe they could introduce their own brand of humor to the more serious RWBY world.
One plot idea could be that Ruby's red eyes start to have a strange glow that gives her the ability to see into the future, but only in brief glimpses. She has to learn to use this new power to stop a new threat that no one else can detect yet.
Maybe a story where the Reds and Blues are transported to the RWBY world. They have to learn about Grimm and Huntsmen while trying to find a way back home. Along the way, they could team up with RWBY characters like Yang, who could teach them some hand - to - hand combat skills, which are different from their usual long - range tactics.
One idea could be that the Reds and Blues get transported to the RWBY world and have to learn how to use Dust to fight. They could team up with Team RWBY and face off against a new enemy that is a threat to both their universes. Maybe they introduce their unique sense of humor and combat styles to the RWBY characters.
Well, a cool plot might involve the Red Swan Queen being exiled from her own land unjustly. She then has to find a way to prove her innocence while also dealing with the challenges of the outside world. She could meet a group of misfits who help her on her journey. Maybe she also discovers a secret about her family's past that changes everything she thought she knew. She could then use this new knowledge to regain her throne and bring about a new era of peace in her kingdom.
One idea could be a crossover battle tournament. Characters from RWBY and Red vs Blue are forced to compete in a series of battles in a strange new arena. This would lead to some really interesting match - ups, like Ruby vs. Church, where their different fighting styles and abilities would clash in unexpected ways.
One idea could be a team - up between Ruby from RWBY and the Red team from Red vs Blue. They could face a common enemy that requires both their unique skills. For example, a new type of Grimm that has advanced technology, and the Reds' combat knowledge combined with Ruby's speed and scythe - wielding abilities would be needed to defeat it.
One idea could be a new student arriving at the school with a mysterious power that no one has seen before. This could cause both excitement and suspicion among the other students.
One idea could be a mercenary who is hired by a mysterious client to steal an ancient relic from Beacon Academy. He has to navigate through the various defenses and teams of Huntsmen and Huntresses.