One possible plot development could be Naruto's internal struggle with the newfound power and responsibility. He might start to question his own limits and how to better protect the village in the future. Another could be the rebuilding of Konoha. Naruto could be deeply involved in the restoration efforts, both physically and mentally, trying to bring back the hope and strength to the villagers.
Sakura could play an important role. She might be more concerned about Naruto's well - being after such a tough fight. She could also use her medical skills to help in the rebuilding of Konoha. Kakashi, too, could be significant. He could guide Naruto in understanding his new powers better and also contribute to the village's security plans.
It could also lead to changes in the power dynamics. Without Naruto, Akatsuki might see the Hidden Leaf Village as an easier target. However, the village could also discover new heroes among the younger generation. The remaining characters would have to find new sources of inspiration and strength.
His fighting style could become more aggressive. Without the fear of pain, he might be willing to use more extreme techniques that would otherwise be too dangerous because of the pain they cause to the user. He could push his body to the limit more often.
Mentally, it would be a huge blow to the ninja community. Naruto inspired many with his never - give - up attitude. His death might make some ninjas lose faith in their own abilities and the future. But on the other hand, it could also fuel the determination of some to become stronger in his memory.
Often, Naruto's relationships with other characters are explored further. He might have deeper conversations with Sasuke, trying to convince him to come back to the village for good. His bond with Sakura could also develop in different ways, perhaps becoming a stronger friendship or even something more romantic in some fanfictions.
In some fanfictions, after Naruto defeated Pain, the village started to rebuild immediately. Naruto became a hero not only in name but also in the hearts of every villager. People looked at him with newfound respect and admiration.
The Akatsuki remnants could still pose a threat. Members like Sasori or Deidara might have had backup plans or followers who now want revenge for the Akatsuki's downfall. They could target Naruto specifically, seeing him as the one who brought down Pain and disrupted their plans.
One possible plot could be that the village, still shaken by Pain's attack, blames Naruto for not preventing all the destruction. They think he has some hidden connection to Pain and turn on him. Naruto, heartbroken, decides to leave the village and find out the truth about his past and the Akatsuki on his own.