Well, it could go in many directions. Maybe Naruto starts a quest to find a way to bring peace to the ninja world on his own terms. Or perhaps he has to deal with the consequences of leaving Konoha and tries to prove his intentions were pure.
Well, it could be that Naruto leaves because he realizes that Konoha's ways don't align with his ideals anymore after that intense mission. Or perhaps there are hidden threats that force him to go away for the greater good.
It might be for Naruto's own good. Sasuke may believe that Naruto is on a dangerous path that will lead to his downfall. So he captures him to keep him from making bad decisions, like sacrificing himself for the village or something similar. He wants to save Naruto from himself in a sense.
In some fanfictions, Naruto might reject Sasuke because of Sasuke's continuous pursuit of power in a way that endangers others. Naruto, who values friendship and the safety of the village, could see this as a betrayal of their shared values.
In such a fanfiction, it could lead to a completely different power dynamic within the ninja village. Maybe Naruto's absence would give rise to new challenges and characters stepping up.
The true tale of Naruto and Sasuke is about their journey from childhood enemies to becoming comrades. They overcome personal traumas and external obstacles, evolving and influencing each other's lives profoundly.
The true story of Naruto and Sasuke is one of friendship, rivalry, and personal growth. They start as rivals but eventually develop a deep bond as they face various challenges together.
In such fanfiction, it's possible that the sick Sasuke and Sakura's clones face challenges in taking care of them or encounter unexpected obstacles. The story might focus on how the clones deal with the illness and its effects on the characters' relationships.
Naruto might protect Sasuke by using his physical strength. He's got those powerful jutsus like the Rasengan. If any enemy comes near Sasuke, Naruto can just blast them away with his attacks.