One idea could be to explore the backstories of the characters in more depth. Maybe one of the main characters has a hidden past that is slowly revealed as the story progresses in the fanfic.
Another interesting idea is to change the setting. Instead of the original setting in 'Walking on Thin Ice', you could set it in a post - apocalyptic world where the concept of 'walking on thin ice' takes on a whole new meaning, like literally walking on frozen, unstable ice that is all that remains of the world's water sources.
First, make sure you're familiar with the original 'Walking on Thin Ice'. Re - watch or re - read it if needed. Then, start with a strong opening. You could begin with a dramatic scene, like a character in immediate danger on the thin ice.
One interesting idea could be the exploration of alternate character relationships. For example, how different characters might interact if certain events in the original 'A Song of Ice and Fire' series had taken a different turn. Another could be the creation of new magic systems or the expansion of existing ones within the fanfic world.
You could create a fanfic where the walkers start to evolve in some unexpected way, like developing a limited form of communication. This would completely change the dynamic for the survivors. Maybe there's a young survivor who discovers they have an immunity to the walker bite but has to keep it a secret because others might try to use them as a test subject.
Maybe a story where the Cullen family in 'Twilight' has to deal with an invasion from the world of 'Fire and Ice'. The White Walkers could pose a threat to their way of life, and they would have to use their vampire and werewolf allies, along with their own unique abilities, to fight back. Or perhaps a love story between a character from 'Fire and Ice' and one from 'Twilight', like Jon Snow falling in love with a vampire or a werewolf. This would bring a whole new level of drama and cultural clash to the fanfic.
One idea could be exploring the backstory of a minor character in the 'chaos walking' universe. For example, a sidekick who has some hidden powers or a past connection to the main antagonist. Another plot could be a time - travel scenario where a character goes back in time to change a crucial event in the 'chaos walking' story, which then has a ripple effect on the entire world. Maybe also a plot where the characters find a new planet that has a completely different form of the 'noise' and they have to adapt to it.
One idea could be to focus on a group of survivors who find an abandoned military base. They have to fortify it against both the walkers and other hostile groups. For example, they might discover hidden underground bunkers with supplies but also face booby traps left by the previous occupants.
One idea could be a group of survivors who find an abandoned military base and have to deal with both the undead and the secrets it holds. Another could be a story focused on a character who has a special ability to communicate with animals in the post - apocalyptic world, and how that helps the group survive. Maybe a fanfic about a community that tries to build a self - sustainable farm while fending off walkers.
One idea could be to cross the Ice Age world with a fantasy world. Have the Ice Age characters encounter magical creatures like unicorns or dragons. Another could be a crossover with a modern - day world, where the prehistoric animals have to adapt to the strange new environment full of skyscrapers and cars.
One idea could be a new character with ice style powers arriving in Konoha. This character could initially be seen as a threat but turns out to be an ally against a common enemy. Maybe an ancient ice - based evil is awakening, and only those with ice style can help stop it.
A fanfic could also center around a maester who discovers a long - forgotten prophecy that has the potential to change the course of the entire story. This maester then has to decide whether to share the prophecy or keep it hidden, as it could cause chaos if it fell into the wrong hands.