Some RWBY villains fanfiction might put the villains in situations where they have to face moral dilemmas. Like, if Tyrian was forced to choose between following Salem blindly or doing something that went against her orders but was morally right. This could lead to a very interesting character development for him.
Salem is also a very popular villain in RWBY fanfiction. Given her status as the main overarching villain in the series, fanfic writers like to expand on her backstory, her motives, and her long - term plans. There could be fanfictions that focus on her interactions with other villains in a more detailed way.
One interesting RWBY IT fanfiction could be one where the RWBY characters encounter Pennywise in a strange alternate dimension. The RWBY team might have to use their unique abilities, like Ruby's speed and Crescent Rose, to combat Pennywise's mind - games.
Sure. There are quite a few. In some of them, the characters from RWBY interact with the Servants in Fate. It's cool to see how the Huntsmen and Huntresses from RWBY would deal with the powerful and often mysterious Servants. Maybe Weiss could form an alliance with a certain magical Servant, or Blake could have some sort of encounter that challenges her views on power, much like how things are in the Fate series.
Well, they might be shocked at the turn of events in Volume 3. For example, Cinder could be secretly pleased with how her plans are progressing while outwardly showing a calm facade. Roman might be frustrated if things don't go as he expected in the fanfiction, like if his heists are thwarted more easily than in the original story.
They might get angry if the fanfiction portrays them in a way they don't like. For example, if they are made to look weak or foolish.
One interesting mercury rwby fanfiction could be about Mercury's backstory before he joined the bad guys. It might explore his childhood and what led him to make the choices he did.
One interesting RWBY TF (Transformation) fanfiction could be about a character transforming into a Grimm for a short period. This would create a whole new dynamic as they struggle with the new form's instincts while trying to get back to normal. It can explore how the other RWBY characters react to this strange transformation.
One interesting 'rwby snake fanfiction' could be about a snake - like Grimm in the RWBY universe and how the characters deal with it. Maybe the snake Grimm has unique abilities that the RWBY team has to figure out how to counter.
One interesting RWBY fanfiction could be about a gamer who gets transported into the RWBY universe and has to use their gaming skills to survive. For example, they might know all the strategies for combat from playing the RWBY game and use that knowledge to fight Grimm. Another could be a story where the RWBY characters themselves discover the concept of gaming from a visiting traveler and start to compete in virtual battles.
One interesting RWBY - Portal fanfiction could be about the characters from RWBY finding themselves in the Aperture Science facilities. They might have to solve the Portal - like puzzles while also using their own unique abilities. For example, Ruby could use her speed to quickly move between portals.