One interesting plot could be a Knight character who was once on the wrong side, but through interactions with the RWBY team, begins to see the error of their ways and strives for redemption. They might have to face old allies who are still on the dark path and fight against them to prove their new allegiance.
A possible plot is that the Knight has a past connection to one of the RWBY characters. This connection is revealed during their journey of redemption. It could be that they were once enemies, but as the Knight redeems themselves, they form an unexpected bond. This bond then helps both the Knight and the RWBY character grow and face new challenges together.
Well, it could be the character development of the knight. Maybe he starts off as a flawed or misunderstood character and gradually redeems himself through various challenges in the RWBY universe.
Obviously, the knight is one of the main characters. Since it's about his redemption, he'll be central to the story.
Well, surely the Knight is a main character. They are the one on the path of redemption. And the RWBY team members - Ruby, Weiss, Blake, and Yang - are likely to be main characters as well. They could be the ones who inspire the Knight's change or the ones who the Knight has to prove themselves to.
Maybe a plot where there is a forbidden love between a vampire from one of the main clans and a vampire from a rival clan. Their love would be against all the rules and traditions of their vampire society, and they would have to face many challenges and obstacles, including the wrath of their respective clans, in order to be together.
Some fanfictions might focus on the relationships the Remnant Knight has within the RWBY universe. For example, how they interact with Team RWBY. They could be a mentor figure, teaching the team about ancient Remnant lore and combat techniques that are unique to the Remnant Knight's heritage.
One idea could be exploring the backstory of how the Silent Knight came to be. Maybe he was once an ordinary Huntsman who faced a great tragedy that led him to his silent and brooding state.
One interesting plot could be a character getting a haircut as a sign of a new beginning. For example, Ruby could cut her hair short after a particularly tough battle as a way to symbolize leaving behind her old, more naive self. It could also be a part of a disguise plot, like Weiss getting an edgy haircut to infiltrate a group that would recognize her long - haired, high - society look.
Well, in some Nightcrawler RWBY fanfictions, there could be plots where Nightcrawler uses his teleportation ability to help the RWBY team in combat. For example, he might suddenly appear behind an enemy and strike, then teleport away before the enemy can counter - attack.
One interesting plot could be a character from RWBY getting involved in a high - stakes racing tournament where they have to use their unique abilities not just to win the race but also to overcome various obstacles and opponents' underhanded tactics.
One interesting plot could be the Black Knight having a secret connection to an ancient shinobi clan in Naruto. Maybe they hold a power that can change the balance in the ninja world.