One interesting concept could be the idea of being reborn with prior knowledge. For example, if a character is reborn in the Naruto world and already knows about future events or the hidden powers of certain characters. This can lead to unique plot developments like changing the course of a major battle or forging unexpected alliances.
Another concept might be the reborn character bringing in new skills or abilities from their previous life. Maybe they have a different form of combat training or a special understanding of technology that doesn't exist in the Naruto world yet. This can create a lot of cool interactions with the original characters as they try to adapt to these new elements.
The idea of Naruto being reborn also allows for a different take on the prophecy. Instead of following the original path of the prophecy, the reborn Naruto could have a new destiny. This could lead to new alliances, enemies, and a completely different endgame for the story.
Another concept could be that Naruto is reborn at a different point in time. If he was reborn earlier, he could potentially change the entire course of the ninja world's history. He might be able to prevent certain tragedies or form different alliances that would reshape the world he knew.
One interesting concept could be the reimagining of characters' backstories. In reborn oc fanfiction, the author can completely reinvent how a character came to be, adding new layers of depth and mystery. For example, an ordinary side character in the original work might be reborn as a powerful wizard with a tragic past that drives their actions in the fanfiction world.
Another concept could be the transformation of the gamer's personality. In reborn gamer fanfiction, the character might start off as a shy or reserved person in the real world but become a bold and fearless leader in the game world they are reborn into. This change can drive many interesting plot developments as they interact with other in - game characters.
In this type of fanfiction, an interesting aspect could be the reborn character's moral code. Since they are reborn as Batman, they have to grapple with his no - kill rule. But perhaps they come from a different background in their past life and have to really struggle to adapt to this. They might also face new challenges in Gotham that force them to re - evaluate Batman's traditional methods.
Some fanfictions might explore the idea of Batman having a different moral code. Maybe he becomes more lenient in his fight against crime due to a life - changing event. This change can lead to different relationships with his villains and allies alike.
Another concept could be the reborn character having memories of their past life. This can create a lot of internal conflict as they try to come to terms with who they were and who they are now. They might also use their past knowledge to change the course of events in the 'originals' world.
Some fanfictions might focus on alternate relationships between the characters. For instance, exploring a romantic relationship between Yang and Weiss that was not explored in the original. This can change the dynamics of the team and lead to different storylines.
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.