One idea could be exploring the backstory of the Fall Maiden before she passed on the power. Maybe she had a secret love interest that was a threat to the order of Maidens. Another could be a story where the new Fall Maiden struggles to control her powers and has to learn from an unexpected mentor, like a character from the criminal underworld who has unique knowledge about the nature of magic.
The Fall Maiden could be a double agent, seemingly working for the good side but actually being manipulated by a powerful, unseen force. The story could focus on the discovery of this betrayal by her friends and how they try to save her from the clutches of the enemy. This would involve a lot of character development and exploration of the complex relationships within the RWBY universe.
A possible plot could involve Pyrrha having to face off against other powerful characters who want to steal her Maiden powers. She would have to use her combat skills, which she's already known for, in combination with her new Maiden abilities. Maybe she teams up with some unexpected allies, like a group of outcast Huntsmen who have their own reasons for wanting to protect the Maiden powers.
One idea could be that Ruby discovers she has the power of a Maiden in a moment of great danger. She then has to learn to control it quickly while still leading her team. Another could be that Weiss, as a Maiden, uses her ice powers in new and unexpected ways, like creating entire ice fortresses to protect her team from a powerful enemy. Maybe Blake, as a Maiden, is able to use her powers to communicate with the Grimm in some strange way, leading to a new understanding of them.
A great plot could be centered around the Summer Maiden's relationships. For example, she might have a forbidden love with a character from the other side, like a member of Salem's faction. This would create a lot of internal conflict as she has to balance her feelings with her duty as a Maiden. Or perhaps she has a deep friendship with a character who is in danger, and she has to use her powers to save them from a great threat.
A great plot could be that Ruby, as the Fall Maiden, discovers that the power she has is connected to an ancient prophecy. According to the prophecy, she is the only one who can stop an upcoming apocalypse. But to do so, she needs to find and unlock the true potential of the Fall Maiden's power. Along this journey, she teams up with some unexpected characters, learns about the history of the Maidens, and battles powerful foes who are trying to stop her from fulfilling the prophecy.
Well, one possibility is that Ruby has to face many challenges to become the Fall Maiden. Maybe she has to fight against other powerful foes who also want the power. She might struggle with the new responsibilities and powers that come with being the Fall Maiden.
One possible fanfiction could be about Ruby's journey as the Fall Maiden. She might struggle with the new power and the responsibilities that come with it. For example, she could face challenges from those who want to steal the Maiden's power for their own evil purposes. Ruby would have to learn to control the power quickly while still being true to herself and her values.
One idea could be a shrine maiden who has the power to communicate with the spirits of past shinobi. She teams up with Naruto to solve a mystery that threatens the Hidden Leaf Village. The spirits might provide clues that only she can understand.
One interesting plot idea could be the discovery of a long - lost dragon egg in 'the fall of dragons fanfiction'. This egg might hold the key to saving the dragon race from extinction. Another idea could be a power struggle among the remaining dragons for the last remaining territory. And perhaps a human - dragon alliance forms to fight a common enemy that is threatening both their existences.
One idea could be Kirby arriving in Remnant and being mistaken for a new type of Grimm at first. Then, as the characters get to know Kirby, they realize his unique abilities can be a great asset in battles against Salem's forces.
One idea could be that the RWBY team decides to start a new workout routine to improve their combat skills. They face challenges like over - training and have to find a balance. Another could be a character - specific story, for example, Yang working out to overcome an injury and regain her strength. Or perhaps the team trains with a new instructor who has very unorthodox methods.