Well, there could be a plotline where Naruto's ability to see the dead is initially seen as a curse. He struggles with it until he meets an old sage who tells him it's actually a great gift. Then he starts to explore the spiritual side of the ninja world more deeply. He might also use his power to help the families of the dead find closure. For instance, he could pass on messages from the dead loved ones, which would earn him the respect and love of many in the village.
Well, there could be a plotline where Naruto's ability to see spirits makes him a target for a group of rogue ninjas who want to harness the power of the spirits. He has to fight them off while also protecting the spirits that are friendly to the village. Also, there could be a story where Naruto uses his ability to see spirits to comfort the souls of those who died in the wars, and this act of kindness earns him a new level of respect and admiration from the villagers.
A plotline could involve a witch from the Left 4 Dead universe being summoned to the Naruto world. This causes chaos as the characters in Naruto have no idea how to deal with this strange new entity. They have to figure out her powers and how to stop her from causing too much destruction. At the same time, some of the Naruto characters might get dragged into the Left 4 Dead world in the process of trying to stop her. There, they team up with the survivors in that world to fight against the hordes of zombies and other witches.
Perhaps in this fanfiction, there could be a new, unexpected hero emerging. Maybe Neville Longbottom finally steps up in a big way. Since Harry is dead, Neville could be the one to find a new way to defeat Voldemort, like discovering a long - lost spell or uniting the houses in a way that has never been done before.
One possible plotline could be the remaining heroes dealing with the aftermath of a major battle where many Young Justice members were lost. They might struggle with guilt and the pressure to carry on the legacy.
One possible plotline could be a situation where Naruto is split into two versions of himself, maybe by some sort of jutsu gone wrong. And as they get to know each other better, they end up kissing as a way to reunite or merge back into one. Another could be in a dream sequence where Naruto is exploring his self - worth and in this dream, he kisses his own reflection which then turns into another version of himself.
One possible plotline could be Naruto finding unexpected allies during his time left for dead. Maybe some characters who previously had no connection to him come to his aid out of a newfound sense of justice or a change of heart.
Another plotline might involve Naruto's inner struggle and growth. He could discover new powers or a deeper understanding of his ninja way while on the verge of death. He might have to rely solely on his wits and the training he's had in the past to survive. For example, he could use his shadow clones in more creative and strategic ways to defend himself and find a way back to his village.
One common plotline is the resurrection of dead characters. If Naruto is dead in the fanfiction, there could be a quest to bring him back. Another is alternate timelines where Naruto's life - or death - changes the course of the entire ninja world. For instance, if he dies early, the Akatsuki might achieve their goals more easily.
One possible plotline could be that Hermione was attacked by a group of dark wizards while on a solo mission. They might have been after some knowledge she possessed. After the attack, she could be found by a mysterious figure who nurses her back to health and together they seek revenge.
Well, a possible plotline might involve Naruto being possessed by the essence of the Shredder. As a result, he starts to act more like the Shredder in his own world. He could form his own group of followers similar to the Foot Clan and try to take over the ninja villages. His friends would then have to find a way to break the possession and bring back the old Naruto. Or, perhaps Naruto willingly takes on the Shredder role to gain new powers to fight a greater evil in his world, but he has to struggle with the darker aspects of the Shredder's personality.