A major theme is the balance between good and evil. The Maidens' powers can be used for different purposes, and fanfics show them either being tempted by evil or firmly on the side of good. Legacy is also common. How the Maidens pass on their powers and what kind of mark they leave on the RWBY world is often explored in these fanfics.
The RWBY team - Ruby, Weiss, Blake, and Yang - could also be important characters in the 'rwby four maidens fanfic'. They might interact with the maidens, either as allies or in some cases, having to resolve conflicts. For example, if there is a misunderstanding about the maidens' powers or intentions, the RWBY team would be there to figure things out.
Well, one interesting plot could be the relationships between the four maidens and how they interact with the main RWBY characters. Maybe they team up to fight a common enemy.
The knight could be developed by showing his code of honor. For example, in every battle he faces, he adheres to a strict set of rules. His backstory might be gradually revealed, like he was once a soldier in a great war and now he feels a sense of duty to protect the maidens. The maidens, on the other hand, could be developed through their interactions with the knight. Maybe one maiden is initially shy but as she spends more time with the knight, she becomes more confident in her abilities.
Well, the plot could involve the knight protecting his maidens from various threats in the RWBY universe. Maybe they are on a quest to find a powerful relic, and along the way, they face Grimm attacks. The knight uses his combat skills and the maidens might have special abilities too, like one could be a healer among the maidens, and they all work together to survive and reach their goal.
Perhaps the plot involves the knight being from a different land or group in the RWBY world, and the maidens have special powers or knowledge. The knight's duty is not only to keep them safe but also to help them fulfill a prophecy or a mission. They might encounter other characters from RWBY who either help or hinder their progress.
Chivalry is likely to be a common theme, given the presence of a knight. It could involve the knight protecting the maidens in various dangerous situations in the RWBY universe.
Well, 'RWBY: Maiden's Awakening' is a fanfic worth checking out. It delves deep into the lore of the Maidens and how they interact with the main RWBY characters. The author does an excellent job of creating a vivid world and engaging storylines. There's also 'Maidens of Destiny' which has some cool plot twists regarding the Maidens' powers and their fates.
Jaune is probably the protagonist around whom the story revolves. As for the Maidens, they are likely characters with special powers. They could be a group of female characters with different personalities and abilities related to elements like fire, water, earth and air. Their interactions with Jaune would be a major part of the story, as they work together or face conflicts within the story's universe.
The knight would obviously be one of the main characters. He could be a new character created specifically for the fanfic, or perhaps a reimagined version of an existing RWBY character with knight - like qualities. The maidens would also be main characters. They could be based on the RWBY girls, or entirely new characters with unique abilities and personalities.