Yes, there are likely some fanfictions out there with this rather unconventional premise. Fanfiction writers often come up with creative and out - of - the - box ideas, and this is one such example. However, it goes completely against the original Naruto storyline where Naruto and Sasuke are peers and rivals.
It would be very different from the original Naruto story. Maybe Sasuke would grow up with Naruto's positive influence from the start, and there would be no need for their intense rivalry. Their relationship would be more of a father - son bond, and Naruto could teach Sasuke his ninja ways in a more nurturing way.
The relationship between Naruto and Sasuke in this fanfiction would be a departure from the original. Naruto's status as the father of Nine - Tails gives him a different kind of strength. Sasuke may initially be skeptical or even hostile towards Naruto's new - found power. However, as the story progresses, they could find common ground. Naruto, with his unique connection to the Nine - Tails, might be able to offer Sasuke something he desires, perhaps a new way to gain power or a deeper understanding of the ninja world. Their relationship could evolve from rivalry to a more symbiotic one, where they both benefit from each other's strengths and Naruto's special connection to the Nine - Tails.
Yes, there might be such fanfics out there. In the Naruto fandom, with a large number of fans creating various types of stories, it's possible that some would write a story where Naruto destroys Sasuke in a way that could be seen as Sasuke - bashing. However, these kinds of fanfics may not be in line with the overall spirit of the original work which focuses on their complex relationship and growth.
There could be Naruto. Since he and Sasuke have a strong connection in the original series, he might also be involved in the gamer fanfiction, maybe as a rival or teammate in the gaming world.
In this kind of fanfiction, Sasuke could die from a sneak attack. He might be so focused on his main target during the Wave mission that he doesn't notice another hidden threat. And this hidden enemy could strike him when he least expects it, leading to his death. For example, an assassin could be hired to specifically target Sasuke and use some sort of poison or a deadly jutsu that he can't defend against in time.
There could potentially be some really creative and out - of - the - box fanfictions with this concept. But finding one might be a challenge. You could try searching on specialized fanfiction websites and use specific search terms like 'Kakashi Sasuke non - traditional relationship fanfiction' and then look through the results to see if there are any that involve the idea of Sasuke being pregnant. But remember, this is a very unusual concept even for fanfiction.
Sasuke would probably be very guarded at first. He's not used to dealing with something so innocent and vulnerable. He might be suspicious of the baby's presence and think it's some sort of trap.
He might meet the future versions of Naruto and Sakura. Their relationship with him could be very different in the future, perhaps they are now leaders of the village and Sasuke has to adjust to their new status.