After being beaten, Naruto could start to explore different fighting styles or learn new jutsus that he hadn't considered before. Sakura, on the other hand, could gain more respect from the other characters. The story might then shift towards them teaming up in a different way, with Sakura taking on a more leadership role in their missions due to her victory over Naruto.
In such a fanfiction, it could be a scenario where Sakura has been training intensively and has developed new skills. Maybe Naruto underestimates her, and she takes him by surprise in a sparring match or a fight during a mission. It might also be a plot device to show Sakura's growth and independence from the typical dynamic where Naruto is often the stronger one.
The story would progress with a lot of tension. Naruto and Sakura joining Akatsuki would mean they are now on the opposite side of their former comrades in Konoha. There would be battles and skirmishes where they have to fight against their old friends. At the same time, within Akatsuki, they would be trying to influence the group towards a more positive path. Their character development would be interesting as they adapt to the new environment and face new enemies and allies within Akatsuki.
The story could progress with Konoha facing a great threat without Naruto's help. The village might initially struggle to find a replacement for Naruto's power. This could lead to a sense of panic among the villagers and the leadership. Some might start to regret their past actions towards Naruto.
If Naruto fused with Bardock in fanfiction, the story would likely take a very different turn. At first, Naruto might be confused by his new abilities and instincts. He would need to train to master them. As he does, he would become a more prominent figure in the ninja world. He could potentially change the balance of power. Enemies would be more afraid of him, and allies would look to him for leadership. His journey would be about not only protecting the village but also about understanding his new Saiyan heritage.
The story might progress in a way that Azula uses Naruto for her own purposes at first. Maybe she wants to use his unique abilities in the ninja world to gain an advantage in her own world. But as she spends more time with Naruto, she starts to develop real feelings for him as a surrogate son. This would lead to a change in her character as she becomes more protective and less self - centered.
If Naruto turned into a zombie in fanfiction, the story could progress in several ways. One way is that his zombification could be part of a larger, darker plot. Maybe Orochimaru or some other villain has a hand in it. His friends would then need to search for a cure while also protecting the village from his zombie attacks. Another aspect could be that Naruto's zombie form has some unique abilities that make him both a danger and a mystery. This could lead to different characters trying to understand and control his new powers for their own purposes.
The story could progress with Naruto having to deal with the challenges of his new form. Maybe he has to find a way to reverse the transformation, so he goes on a quest to find a cure. Along the way, he meets old friends and new characters who either help or hinder him.
The story could start with Naruto suddenly finding himself in a giant form. Then he has to quickly figure out how to move without causing too much destruction. As he gets used to his new body, he might start using it to protect the village from threats that normal - sized ninja couldn't handle.
The story might progress with Fuu adapting to the Leaf Village's lifestyle.
The story would likely start with chaos as Goku's sudden appearance would be a huge shock. His actions would drive the plot. For example, if he accidentally destroyed part of a village while testing his power, the ninja would either see him as a threat or try to get his help against other enemies.