One interesting plotline could be the exploration of the God of Light's past and his relationship with other deities in the RWBY universe. Maybe how he came to be and what his true intentions are for the world of Remnant.
Well, in RWBY God of Light and Darkness fanfiction, a cool concept could be the idea of characters being chosen or influenced by these gods. Maybe a character gains special powers from the God of Light to fight against the encroaching darkness. Also, the fanfiction might delve into the moral implications of the actions of these gods and how the characters react to them.
Ruby Rose is often involved. Given her role as a main character in RWBY, it's easy to imagine her having some sort of encounter or connection with the God of Light. Her silver eyes, which already have special significance in the series, could be further explored in relation to the God of Light.
Ruby Rose is often involved. Given her role as a protagonist in RWBY, she could be a key figure in the fanfiction related to the God of Light and Darkness. Maybe she is the one who has to find a way to restore the balance between the two forces.
A third idea is to create a fanfiction where the backstories of the RWBY characters are intertwined with the lore of God of War. For instance, Weiss could have a connection to a long - lost civilization in the God of War world that was known for its ice - based magic. This discovery could lead her on a journey to uncover her family's past and also learn more about this new world she's connected to.
In a RWBY OC God of Creation fanfiction, the design of the character is crucial. They could be depicted as a benevolent deity, using their powers for the good of Remnant. For example, they might create new safe havens for the people. Or they could be more of a neutral force, simply observing and occasionally intervening in the affairs of the world. The possibilities are endless when it comes to exploring their relationships with the main RWBY characters like Ruby, Weiss, Blake, and Yang.
Survival is another theme. In RWBY, the characters are fighting against Grimm to survive, and in God of War, Kratos is often in life - or - death battles. In fanfiction, this can lead to stories where the characters from both universes must rely on each other's skills to stay alive.
There are quite a few. Often, in these crossovers, the power levels of the characters are compared. Kratos, with his god - like strength, could be an interesting addition to the RWBY world. He might interact with Ruby and her team in various ways, like becoming a mentor figure due to his vast combat experience.
One interesting RWBY and God of War fanfiction could be where the characters from RWBY are transported into the world of God of War. They might face the challenges there with their own unique abilities. For example, Ruby's speed could be a great asset against the enemies in the God of War universe. Another aspect could be a crossover where Kratos teams up with the RWBY team to fight a common enemy. There could be a lot of interesting character interactions and power combinations in such a fanfiction.
One common theme is power. Since Naruto is often depicted as a 'god' in these fanfictions, the exploration of his extreme power in the RWBY setting is frequent. Another theme is the clash of cultures. Naruto's ninja world has different values and ways of life compared to RWBY's world. Also, friendship and teamwork are often themes as Naruto might team up with RWBY characters.