You could include Winter Schnee. Her strict military upbringing and her relationship with Weiss can be a source of conflict and growth. Additionally, Mercury Black, with his acrobatic fighting skills and his loyalty to Cinder, can be used to show the darker side of the RWBY world and add some intense fight scenes to the fanfic.
Arya Stark would also be a great addition. She was a fierce and independent character. In the afterlife, she could be using her skills to either protect the other spirits or cause some chaos among those she didn't like in life. Maybe she's on a mission to take revenge on the remaining enemies of her family, even in the afterlife.
Definitely the classic spy archetypes like the suave and experienced agent, the tech - savvy gadget expert, and the tough - as - nails female agent. You could also include a mysterious informant who has connections all over the underworld. This character could provide crucial leads but also be a bit of an enigma, making the spies question their motives.
A plot could revolve around a new tournament in the RWBY universe specifically for the new game. Characters from different academies form teams not only to compete but also to uncover a conspiracy that seems to be using the tournament as a cover. It would involve a lot of intense battles, strategic planning, and some mystery-solving.
Ruby Rose is often a very popular character. Her determination and her unique scythe - wielding skills make her stand out. She's also the leader of Team RWBY, so she has a central role in many fanfic storylines.
For a 'War of Kingdoms fanfic', an exiled knight could be a great character. This knight was wrongly accused of a crime in their home kingdom and now wanders the lands, getting involved in the war in unexpected ways. Another interesting character could be a bard who travels from kingdom to kingdom, singing songs that either inspire or demoralize the troops. And a female assassin trained in the arts of stealth and death, who is hired by one of the kingdoms to take out key enemies. These characters would bring different perspectives and skills to the story, and their personal stories and goals would intertwine with the overall plot of the War of Kingdoms.
You could include the Gym Leaders from Pokemon Ruby. They have distinct personalities and battle styles. For example, Wallace, the Sootopolis City Gym Leader. His elegance and powerful Water - type Pokemon make him a great character. Another interesting character could be Steven Stone. He's a strong trainer and a bit of a mystery. And of course, the Team Magma or Team Aqua grunts. They add an element of conflict to the story.
Definitely Tyrion Lannister. In a modern setting, he could be a brilliant but underestimated lawyer, using his wits to outmaneuver his opponents in the courtroom, much like he did in the political intrigue of Westeros. Daenerys Targaryen would also be great. She could be a strong - willed businesswoman or a political leader, fighting for the rights of the underprivileged.
You can start by brainstorming an original concept that fits within the RWBY universe. Maybe think about creating a new character with a unique backstory and abilities. For example, a character from a far - off kingdom who comes to Beacon Academy with a secret mission.
A third storyline could be about a mysterious villain emerging in the fanfic. This villain has the power to disrupt the balance of the RWBY world. The RWBY team has to figure out the villain's motives and weaknesses. Along the way, they discover secrets about their own powers and the history of their world that they never knew before.
One interesting concept could be exploring the backstories of minor characters in the RWBY game universe. For example, delving into the past of a random hunter or Grimm. Another could be alternate timelines where different events occur, like if a major character had made a different choice during a crucial battle. Also, fanfics might focus on the relationships between characters in more depth, such as the unspoken bond between teammates that wasn't fully explored in the game.