Maybe Naruto starts to understand Sasuke's motives better. He could embrace Sasuke's idea of seeking power for protection, but in a different way. For example, he might focus more on individual strength rather than relying on the village all the time.
It could be the Akatsuki. Since Naruto is now following a more Sasuke - like path, he might attract their attention more. They might see him as a potential threat or someone they can manipulate, just like they did with Sasuke.
I haven't actually read this specific fanfic, but generally, such a scene where Sakura holds Sasuke's cheek could imply deep emotions. It might signify her care, love or a moment of intense connection between them.
Another possible theme is friendship. Even though they have a complex relationship, this moment might symbolize the strong bond of friendship that exists beneath the surface. It could be a moment of pure, unspoken understanding between them.
He might face some initial instability. His body could reject the changes at first, leading to things like loss of control over his movements or chakra.
Perhaps Kurama has some hidden ability that allows it to manipulate matter at a fundamental level. Using this ability, it could assemble atoms and molecules to construct a new body for Naruto. This process might be tied to the Kekkei Genkai in the fanfic, where the unique genetic trait plays a role in how the body is formed and stabilized.
One common theme is self - discovery. When the characters swap bodies, they often learn new things about themselves. For example, they might realize how others perceive them.
One common theme is the misuse of ninja techniques. When jutsu are used inappropriately or experimented with recklessly, it often leads to body horror situations. Another theme is the influence of dark and forbidden powers. For instance, curses or ancient evils can cause characters' bodies to mutate or decay. Also, the idea of body as a battleground is present, where the body is warped by external forces such as enemy attacks or untested medical ninjutsu.
He could enhance his physical strength by focusing chakra into his muscles. For example, like how he does with the Rasengan, but on a more internal level to boost his natural power.
In fanfic, Kurama could improve Naruto's body by melding their life forces in a new way. This new connection might give Naruto enhanced senses. His eyesight could become sharper, allowing him to spot enemies from a greater distance. His hearing could be more acute, enabling him to detect stealthy movements. Moreover, this could also lead to an increase in Naruto's overall stamina, as Kurama's energy constantly revitalizes his body, making him able to endure long - drawn - out battles or intense training sessions.