One consequence could be a shift in the power balance among the ninja villages. Since Orochimaru was a powerful and feared figure, his death might cause some chaos as his former allies or subordinates try to either avenge him or claim his resources. For example, some of his secret labs and experiments might be up for grabs, leading to potential conflicts.
In this kind of fanfiction, Naruto might have used his new and powerful jutsu that he developed secretly. Maybe it was a super - enhanced Rasengan with some special chakra nature added to it, which was strong enough to overpower Orochimaru.
Since Orochimaru had many experiments and secrets, his death at Naruto's hands in the Chunin Exams fanfiction could lead to a scramble for his research. Other villages or even some rogue ninjas might try to steal his notes and facilities. In Konoha, Naruto might be pressured to reveal what he knew about Orochimaru's plans and secrets. This could put him in a difficult position as he may not know everything. Also, Sasuke, who had a connection with Orochimaru, might have a complex reaction. He could be angry at Naruto for killing Orochimaru, or he could see it as a sign of Naruto's strength and be motivated to become stronger himself.
In some fanfics, Naruto might use his new and powerful jutsu that he has mastered over time. Maybe he combines his Sage Mode with the power of the Nine - Tails in a unique way that Orochimaru can't counter. For example, he could use the Nine - Tails' chakra to enhance the range and power of his Sage Mode attacks, and then catch Orochimaru off - guard.
One scenario could be that Orochimaru tries to take over Sasuke's body again. Naruto, being Sasuke's friend, would do anything to stop it. He could use his Uzumaki bloodline powers, like the Adamantine Sealing Chains, to bind Orochimaru and then use a powerful attack to finish him off. Another possibility is that Orochimaru has created a new, even more dangerous experiment that endangers the entire ninja world. Naruto, as the hero, steps up and uses his Sage of Six Paths powers (if he has access to them in the fanfiction) to kill Orochimaru.
In some fanfictions, Naruto might kill Orochimaru by overpowering him with newfound powers. For example, if Naruto has a sudden boost in his Sage Mode or a new jutsu he developed. Orochimaru is a powerful foe, but Naruto's growth could potentially lead to his defeat. Maybe Naruto has also mastered some sealing techniques that can counter Orochimaru's ability to regenerate and transfer his soul.
Well, perhaps in the fanfiction, Naruto kills Orochimaru and the Akatsuki, but it turns out that Orochimaru had a failsafe. His death triggers a powerful curse that starts to affect Naruto and the Hidden Leaf Village. Naruto then has to find a way to break this curse while also dealing with the remaining threats that were associated with the Akatsuki. It could be a race against time to save the village and himself.
The impact would be far - reaching. Naruto's actions of killing Orochimaru and the Akatsuki would send shockwaves through the ninja world. Politically, the relationships between the villages would need to be re - evaluated. Some villages might see Naruto as a symbol of hope and a unifying force, while others might be jealous of the Hidden Leaf for having such a powerful ninja. Economically, the trade routes that were affected by the Akatsuki's activities would start to normalize. Socially, the fear that the Akatsuki had instilled in the common people would start to fade away. However, Naruto would also have to deal with the moral implications of his actions, especially if he had to use extreme means to kill them.
In a fanfic where Orochimaru kills Naruto, the plot would take a very different direction. Naruto was the Jinchuriki of the Nine - Tails, and his death would mean the Nine - Tails' power is lost. Orochimaru might try to take over Konoha or use Naruto's death to gain some other advantage. The other ninja villages might see Konoha as weak and attack. His friends would have to deal with the grief and might turn to different paths, some perhaps darker in their search for meaning after such a loss.
Yes, there might be some fanfictions with such a plot. In the Naruto universe, it's a very wild and out - of - the - box concept. Some fanfiction writers like to explore such non - canon relationships to create unique storylines. However, it's not part of the original Naruto story.