One possible plot development could be that the Hidden Villages struggle to maintain peace without Naruto's influence. His death might lead to power vacuums and political unrest. For example, some villages may try to take advantage of Konoha's weakened state. Another aspect could be how his friends and family cope. His wife, Hinata, might have to raise their children alone, and his friends like Sasuke would feel a great sense of loss and perhaps guilt for not being able to protect him. The ninja world as a whole could also lose its hope symbol, and new, darker forces might emerge, thinking that without Naruto, they can carry out their evil plans more easily.
In such a fanfiction, it might be that Naruto sacrifices himself to fully end the war. His death could trigger a series of flashbacks among the characters. They would remember all the times he inspired them and how he was the one who always believed in the power of friendship and hard work. Konoha might then start a new era of rebuilding, with new generations being taught about Naruto's legacy. Some characters could also go on a journey to find a way to bring him back, similar to how they tried to save Sasuke in the original series.
Maybe Naruto's death is due to an unexpected consequence of the war. His body was already weakened from all the battles. After the war, he succumbs to his injuries. This could lead to a change in the power dynamics between the tailed beasts. Without Naruto as their Jinchuriki, Kurama might become more unruly or withdrawn. The other villages that were allied with Konoha during the war might start to distance themselves, fearing that Konoha is no longer as strong without Naruto. His death could also be the catalyst for a new generation of heroes to rise, inspired by his selfless deeds during the war.
Well, one possibility could be the rebuilding of the ninja villages. After the war, there would be a lot of destruction to repair. Maybe Naruto and his friends would take on leadership roles in this rebuilding process.
Perhaps Naruto forms new alliances in this 'naruto after the war crossover fanfiction'. He might team up with characters from other fictional universes who got involved because of the crossovers. They could work together to restore peace not just in his world but also in the worlds that have been connected through the crossovers.
One possible plot development could be that Sasuke is in a life - threatening situation, perhaps against an extremely powerful enemy. Naruto sacrifices himself to give Sasuke a chance to escape or defeat the foe. This would likely lead to Sasuke being filled with guilt and regret, and might change his whole outlook on life.
One possible plot development could be that Voldemort fully regains his power without Harry as an obstacle. The wizarding world would be plunged into complete darkness. His friends, like Hermione and Ron, might go into a deep state of despair and then form a resistance group. They would try to find other ways to defeat Voldemort, perhaps by seeking out more powerful magical artifacts or uniting with some previously neutral magical creatures.
One possible plot development could be how the wizarding world reacts to the loss of the so - called 'Chosen One' even as a baby. There might be widespread grief and fear among those who opposed Voldemort, as they had placed so many hopes on Harry. Another aspect could be how Voldemort's reign of terror continues without the threat of Harry Potter. He might become even more powerful and tyrannical, with no one to oppose him in the way Harry was prophesied to.
One possible plot development could be that his death shatters the Straw Hat crew. They might disband in grief, each going their own way. Zoro could become consumed with revenge, vowing to take on the Marines who were responsible.
One possible plot development is that Tsunade could step up her efforts in uniting the other villages. Since Naruto was a symbol of hope and unity, his death might prompt Tsunade to work even harder to prevent further chaos among the ninja villages. She could initiate more diplomatic meetings and treaties to ensure peace in Naruto's memory.
Maybe they start a relationship. Daphne, who might have seen a different side of Harry during the war, could be drawn to his courage and leadership. They could face challenges together, like dealing with the post - war prejudices. Harry, being a half - blood, and Daphne from a pure - blood family, might have to overcome the old - fashioned views of some in the wizarding community.
Well, one possibility could be Nico dealing with the aftermath of the war. Maybe he's trying to find his place among the survivors. He might be struggling with PTSD from the battles he faced. Another could be him forming new relationships or strengthening old ones. For example, he could become closer to his friends from Camp Half - Blood.
One possible plot development could be that Sakura's tears somehow give her a newfound strength or resolve. Maybe she decides to train harder to protect Naruto in the future. For example, she could seek out a powerful teacher or a hidden jutsu to become stronger.