Their relationship would be a balance of friendship and professionalism. Naruto would be the one making the big decisions for the village, but he would value Sasuke's input as an experienced Anbu. Sasuke would see Naruto as a capable leader and would be loyal to him. They would also have a personal connection based on their past, which would make their interactions more nuanced. For instance, when Sasuke goes on a dangerous Anbu mission, Naruto would be worried about his friend's safety but also trust in his skills. And when Naruto faces a difficult political situation, Sasuke would offer his support in a way that only he can, using his knowledge of the shadows.
Their relationship would be one of mutual respect. Naruto, as Hokage, would trust Sasuke's abilities as an Anbu member. Sasuke, on the other hand, would respect Naruto's leadership. They would be comrades again, but with a new dynamic due to their different positions in the village.
A really interesting fanfiction idea could be that Sasuke in the Anbu discovers a conspiracy within the village that even Naruto as Hokage is unaware of. Sasuke then has to decide whether to go to Naruto directly or investigate further on his own. This would create a lot of tension and drama, as Sasuke's loyalty to the village and his relationship with Naruto are both at stake.
One possible scenario in such a fanfiction could be Naruto as Hokage having to deal with political situations in the village while Sasuke, as an Anbu, is sent on dangerous covert missions. Naruto might rely on Sasuke's intelligence and combat skills from his Anbu work to protect the village from external threats. They could also have some internal conflicts due to their different roles and the secrecy associated with Sasuke's Anbu work.
In a fanfic scenario, Naruto as Hokage might have some concerns about Sasuke being in the Anbu. He could worry that Sasuke's past and his more solitary nature might not fit well with the Anbu's group dynamics. However, Sasuke proves himself by using his unique skills and insights to protect the village. Meanwhile, Naruto tries to integrate Sasuke more into the village's core, leading to some interesting character - development moments for both of them.
It would likely become more cooperative. They'd have to communicate more often to take care of the pregnancy - related matters.
Their relationship could become more competitive. Since ANBU is a place for elite ninjas, they might constantly strive to outdo each other in missions.
It would be very close. Kakashi would be like a father or an older brother to them. Naruto and Sasuke would respect and rely on him. They would probably have a more harmonious relationship with each other too, because Kakashi would be there to mediate any conflicts.
Well, it would be quite different. If Sasuke was the village - bound one and Naruto the outcast, Sasuke would probably be more frustrated with Naruto. He'd see Naruto's actions as irresponsible and dangerous. Naruto might view Sasuke as naive for still believing in the village.
The relationship would be very different. Instead of Naruto chasing after Sasuke to bring him back, it might be Sasuke trying to reach out to Naruto. Sasuke would be the more empathetic one, constantly trying to break through Naruto's cold exterior.
At first, it might be filled with suspicion. Naruto, being the Hokage, would be cautious of Itachi's past actions as an Anbu. But as they start to interact more, Naruto might see the good in Itachi that Sasuke saw. Itachi, on the other hand, would respect Naruto's position as Hokage and his power to bring change. Slowly, they could develop a mutual understanding and respect.
In the original story, Naruto and Sasuke have a complex but deep - rooted friendship. In this fanfiction, the hatred completely flips their relationship. They would no longer be friends but rather rivals or even enemies. There would be no more of Naruto's attempts to bring Sasuke back to the village.