Another plot could be that Naruto is reincarnated as a new god in a parallel universe where the ninja world has different rules. He has to figure out how to use his new powers in this strange new world while also trying to find a way back to his own universe. There, he could face versions of his old friends and enemies that are very different from what he knew.
Well, a possible plot could be that Naruto, as a god, decides to teach the next generation of ninjas in a completely new way. He might introduce them to powers and techniques that were previously unknown. For example, he could show them how to manipulate energy on a cosmic level. Also, he could be in a situation where other gods from different realms see him as a threat and try to take his powers away.
One idea could be exploring Kratos' past in more detail. For example, his early days as a Spartan warrior before the events of the main games. Maybe he had a comrade in arms that he lost, and in the fanfiction, this comrade's spirit somehow resurfaces and has a message for Kratos. Another plot could be Kratos having to face a new type of enemy that is not from Greek or Norse mythology, but from a completely different culture's pantheon, like the Egyptian gods. This would force him to adapt his fighting style and strategies.
One interesting plot idea could be the Lightning God power being passed down in an unexpected way. Maybe a character who was thought to be weak suddenly discovers they have a latent connection to the Lightning God power. They then have to learn to control it while facing challenges from enemies who want to steal this power for themselves.
Maybe Naruto, as the prankster god, decides to mess with the village elders. He could swap their official documents so they end up making really silly decisions based on the wrong information. This would add a lot of humor to the story as they scratch their heads wondering what went wrong.
Another plot idea is that Naruto's powers as the'son of god' are slowly awakening. As they do, he starts to have visions of the past and future of the ninja world. This makes him determined to change the course of history to prevent future disasters, but he has to convince others to believe in his visions first.
One idea could be the new Sannin facing a powerful new enemy that threatens the entire ninja world. They have to combine their unique skills, like one being a master of genjutsu, another of taijutsu, and the last of ninjutsu, to overcome it.
One idea could be a new clan that has the ability to control time in a limited way. For example, they can slow down time for a short period during battles, which gives them an edge. Another idea is a clan that has a special connection with animals, not like the Inuzuka clan, but they can communicate telepathically with all kinds of animals and use their skills in combat or for gathering information. A third idea could be a clan that has mastered a form of chakra that can create illusions so powerful that they seem real even to the Sharingan or Byakugan users.
One idea could be a story about a new type of chakra that is discovered in the new village. This chakra has unique powers that no one has ever seen before. The main character could be a young ninja who is the first to master it, leading to a series of adventures where they have to protect this new power from those who would misuse it.
Maybe Naruto's new hair is the result of a cross - dimensional encounter. He accidentally travels to a parallel world where all the characters have different hair styles. When he returns to his own world, his hair has changed to a style that combines elements from both worlds. This new hair then becomes a link between the two dimensions, and he has to use it to prevent a threat that is spreading across both universes.
One idea could be Naruto being reborn into a different clan, like the Uchiha, and having to deal with the clan's secrets and rivalries from a new perspective. Another could be him starting his ninja training much earlier in this new life, leading to different power developments. Maybe he has a different set of friends or allies in this new life as well.