In the fanfic, if Naruto kills the Sound 4, it could make Sasuke more competitive. He might see Naruto as having achieved a level of ruthlessness that he himself desires. Or, Sasuke could be disappointed in Naruto for resorting to killing. Their relationship would be full of tension as Sasuke tries to figure out where he stands in relation to a Naruto who has killed, and Naruto might struggle with Sasuke's reaction to his actions.
Their relationship would likely become very strained. Kiba would probably be afraid of Naruto at first. He might avoid Naruto and have a hard time trusting him again. Naruto, on the other hand, would feel extremely guilty.
It could either strengthen or strain their relationship. If Naruto gains power from the Shinju fruit and uses it for good, Sasuke might respect him more. However, if Naruto starts to change in a way that Sasuke doesn't like, it could cause friction. For example, if Naruto becomes too overconfident with his new power, Sasuke might see it as a negative change. Or, if Naruto's new power makes him a target, Sasuke could feel the need to protect him, which would bring them closer together in a different way than before.
It could make Sasuke more protective of Naruto. Sasuke has always had a complex relationship with Naruto, and seeing him lose an arm would stir up some deep emotions. He might feel guilty, especially if he was somehow involved in the incident that cost Naruto his arm. This could lead to Sasuke staying closer to Naruto and being more open about his feelings.
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.
Well, it completely shatters it. Their relationship which was built on rivalry, friendship, and a sense of mutual understanding is now gone. It's a tragic end to what could have been a great story of redemption and friendship.
Well, with Minato alive, Naruto would have a stronger family support system. This would likely make Naruto less eager to prove himself through Sasuke. And for Sasuke, seeing Naruto having a complete family with Minato might stir some complex emotions in him. Maybe envy at first, but later it could lead to him being more open to Naruto's friendship. Minato could also act as a mediator between the two, guiding them to understand each other's pain and dreams better, thus forging a stronger bond between them.
Well, it could make Sasuke feel a bit left out at first. He might be jealous that Naruto has Sakura's attention. But in some fanfictions, it could also lead to Sasuke realizing that he has some feelings for Sakura too, and then there would be a love triangle situation.
It would strain their relationship. Sasuke's jealousy could make him act cold towards Naruto. He might avoid Naruto or be short - tempered when they interact.
Yes, there are likely some fanfics out there with such a plot. Fanfic writers often explore alternate storylines, and this would be a very dark and dramatic deviation from the original Naruto story.
Yes, there might be such fanfics out there. Fanfic writers often explore alternative storylines, and this would be a very dark and unexpected twist to the original Naruto story. It goes against the strong bond and rivalry that Naruto and Sasuke have in the canon, but that's the allure of fanfiction - to see what could happen if things took a drastically different turn.