Well, a plot idea might involve a rift opening between the dimensions and characters from different 'rwby shattered dimensions' getting mixed up. They have to figure out how to get back to their own worlds while dealing with the differences in each other's powers and cultures. Or perhaps there could be a dimension where the Dust has a mind of its own and is causing chaos, and the RWBY characters from other dimensions have to come together to stop it.
One idea could be exploring different versions of the characters from parallel dimensions. For example, a dimension where Ruby has ice powers instead of her normal speed-based powers. Another could be a dimension where the Grimm are the dominant species and the Huntsmen and Huntresses are in hiding. Maybe also a dimension where the technology is far more advanced and they use mech - suits to fight the Grimm.
Ruby is often a very popular character. Her optimistic and determined nature makes her a great protagonist in fanfics. Weiss is also popular, with her complex backstory and growth throughout the series. Blake, with her mysterious past and her struggle for equality, is another fan favorite. And of course, Yang, with her strength and her loyalty to her sister and friends.
One interesting plot idea could be that Naruto is transported to an altered dimension where the shinobi world has different power structures. For example, the Hidden Villages might be ruled by different clans or there could be new types of jutsu. Another idea could be that the Akatsuki in this altered dimension has a different goal, perhaps they are trying to restore balance instead of causing chaos. Also, Naruto could find that his friends have different personalities or abilities in this new dimension, which would create a lot of interesting interactions and challenges for him to overcome.
One interesting plot idea could be exploring the alternate versions of the beloved Star Trek characters in the Shattered Glass universe. Maybe how their moral compasses are completely reversed, like the usually heroic Kirk being a villain. It could also involve the different power dynamics between the Federation and its enemies in this twisted reality.
One idea could be exploring a dimension where the Saiyans never lost their planet and became a peaceful, advanced civilization. Another could be a dimension where the Z - fighters have to face off against versions of themselves that are corrupted by dark magic. Or perhaps a dimension where the Dragon Balls have different wishes and limitations.
You could focus on the relationships between the different factions in the 'a shattered vale' world. For example, how they interact and compete for resources in the harsh environment. Or perhaps write a fanfic that delves into the magic system of the vale, creating new spells or exploring how the existing magic affects the story.
One idea could be a choice where the characters have to decide whether to ally with a mysterious new group in Vale. This new group seems to have some unique powers and resources, but their motives are unclear. It could lead to different story arcs depending on the choice made.
One idea could be a character getting a tattoo that has a hidden power. For example, a RWBY character might get a tattoo that glows when danger is near, like a warning sign. Another plot idea could be a story centered around a tattoo artist in the RWBY universe who creates unique tattoos for the Huntsmen and Huntresses, and each tattoo gives them a special ability or connection to the Dust energy. Maybe a tattoo that allows a character to communicate with Grimm in a strange way, adding an interesting twist to the story.
One idea could be a story where the characters from RWBY have to face a new, extremely powerful Grimm that has unique abilities. This Grimm could be immune to certain types of Dust, forcing the team to come up with creative combat strategies. Another plot could involve a tournament within the RWBY battlefield, where different teams compete not just for victory, but also for a rare and powerful relic. This would add an element of competition and strategy among the characters.
Perhaps Sasuke is mistaken for an enemy at first. His strange powers and appearance raise suspicion. But as the story progresses, it's discovered that he has knowledge of a greater threat that is coming to the RWBY world, something that might be related to his own past experiences. So he teams up with the RWBY characters to prepare for this threat.
One idea could be the RWBY characters teaming up with the Payday gang to steal some valuable Dust from a powerful and corrupt company. They'd have to use their unique skills, like Ruby's speed and Crescent Rose, combined with the Payday crew's heist expertise.