One interesting concept could be the transformation of Naruto's character. In Naruto Hollowfication fanfiction, his normal ninja abilities might blend with Hollow - like powers. For example, he could gain enhanced speed and strength similar to Hollows in 'Bleach', but with his own Naruto - style twist. Maybe his Rasengan could take on a new form, with Hollow - influenced energy coursing through it.
One interesting concept could be the exploration of the characters' inner struggles during hollowfication. For example, how they deal with the newfound powers and the loss of their humanity in some ways.
Some fanfictions might explore the idea of Naruto befriending an Espada. This friendship could lead to Naruto learning about different ways of combat and power management from the Espada. It could also result in the Espada having a change of heart due to Naruto's positive influence, and together they could face new threats in the Naruto universe that neither could face alone.
In Naruto fanfiction, the Sharingan is often explored in unique ways. For example, some fanfictions might expand on its ability to not only copy jutsu but also to predict an opponent's moves on a whole new level. Another interesting bloodline concept could be the Uzumaki's massive chakra reserves, and fanfictions may play with how this could be used in different scenarios, like creating entirely new jutsu.
In 'naruto dark naruto fanfiction', the concept of Naruto's doppelganger or 'dark Naruto' is often explored. This could be a manifestation of his repressed negative emotions. It might be that this dark Naruto has its own goals that are contrary to the real Naruto's. For instance, it could want to destroy the Hidden Leaf Village instead of protecting it. And the story could revolve around how Naruto deals with this inner darkness, either by trying to suppress it or, in a more extreme version, merging with it and becoming a different kind of hero or anti - hero.
One interesting concept could be an exploration of Naruto's dark side. It might show how his experiences could have turned him truly evil, like if he had been more influenced by the hatred in the ninja world from the start. Maybe in this fanfiction, he uses his powers for self - gain rather than for the good of the village.
Well, in some 'naruto destruction fanfiction', one interesting concept could be alternate endings to battles. For example, a character who was victorious in the original series might lose in the fanfiction, which completely changes the course of the story. Another concept could be the destruction of well - known Naruto locations, like Konoha being razed to the ground in a more extreme scenario than in the original plot.
One interesting concept could be the combination of Naruto's ninja skills with the unique abilities of Skylanders. For example, Naruto's shadow clone jutsu could be used in Skylanders - like battles, creating multiple clones to outnumber opponents. Another concept might be the integration of Naruto characters into the Skylanders world, like how they would interact with the Skylanders themselves and adapt to that environment.
One interesting concept could be the unique powers that a Celestialsapien might bring to the Naruto universe. For example, they could have the ability to manipulate celestial energy in ways that no ninja has ever seen. This could create new and exciting plotlines, like battles where the Celestialsapien's powers disrupt the normal chakra - based combat.
One interesting concept could be Naruto achieving a new level of power that is almost god - like. For example, he might gain the ability to manipulate time or space, which would completely change the dynamics of the Naruto universe. This could lead to new storylines where he has to face moral dilemmas regarding the use of such extreme power.
In doomsday naruto fanfiction, a cool concept could be the transformation of the Hidden Villages. They might have to unite in ways they never did before, like building a mega - village to protect everyone. Also, Naruto's role could be redefined. Instead of just being the hero of one village, he could become the symbol of hope for the entire shinobi world facing the doomsday. Another aspect could be the exploration of new jutsus that are born out of desperation in this doomsday setting.