Well, one possible plot development could be the exploration of different characters' reactions to the Eye of the Moon Plan. Maybe some characters who were previously on the sidelines become key players in either supporting or opposing it.
One possible plot development could be that Naruto loses his eye in a battle against a powerful new enemy. This might lead to him having to adapt his fighting style, perhaps relying more on his other senses like hearing and smell. He could also experience self - doubt and a crisis of confidence, but then use this setback as motivation to become even stronger.
One possible plot development could be that Naruto starts to train with new techniques that are more suitable for his condition. Maybe he'll focus on ranged attacks or stealthier approaches. Another could be that there is a rift between the Uzumaki and Hyuga clans because of this incident.
One possible plot development could be Naruto using the flowing eye to discover new jutsu. For example, he might be able to see the chakra flow in a different way and create unique attacks. Another could be that the flowing eye attracts the attention of new enemies who want to either steal it or destroy it because they fear its power.
Perhaps a new character is introduced as the main antagonist. This character could be from a hidden clan that has its own motives regarding the Eye of the Moon Plan. They might see it as a way to gain ultimate power and control over the ninja world. They could manipulate other characters and events to further their own goals related to the plan. For example, they could trick Naruto or Sasuke into believing they are on their side, while actually working against them in the context of the Eye of the Moon Plan.
Well, one possible plot development could be that it makes her more determined. Losing an eye might be a turning point where she decides to train even harder to overcome her disability. Maybe she starts to focus more on her other senses, like Naruto in the original series focused on his sense of smell when his vision was blocked. It could also lead to some interesting interactions with her friends. They might be overly protective at first, but she would prove to them that she's still the same strong - willed person.
One interesting concept could be alternative ways to achieve the Moon Eye Plan. Maybe a character finds a way to modify the plan to bring about a different kind of peace. For example, instead of putting everyone in an illusionary world, they use the power of the plan to make people more empathetic in the real world.
Perhaps Naruto discovers some hidden powers or abilities that Kunou has inherited from him, which leads to a whole new adventure. They might go on a journey to understand and control these powers together. Also, Naruto could face challenges from the village elders who are not so accepting of Kunou at first.
Another plot development could be that with Sarutobi as his adoptive father, Naruto has access to different mentors. Sarutobi could call in favors from other great ninjas to train Naruto. This would expose Naruto to a wider variety of fighting styles and strategies. Maybe he gets trained by Kakashi earlier, or even has the chance to learn from some of the retired or older ninjas who usually keep to themselves.
One possibility is that Naruto's friends launch a rescue mission. They would use their unique skills, like Sasuke's Sharingan or Sakura's medical ninjutsu combined with her combat skills, to find and save Naruto.
Well, one possible plot development could be Naruto training even harder to prove himself. After the Chunin Exams, he might seek out new jutsu or ways to improve his skills. Maybe he starts to focus on his control over the Nine - Tails' chakra more intensively.