Limbo in Naruto often refers to a mysterious dimension. A 'limbo naruto fanfiction' could be about many things. It might explore Naruto's adventures in the limbo dimension, perhaps facing off against unknown foes or uncovering secrets related to the limbo that were not fully explored in the original series.
Typically, Naruto would be a central figure. But it could also focus on characters like Sakura. She has her own strengths and development arc. In a limbo - related story, she might use her medical ninjutsu skills in unique ways in the limbo dimension. Also, Orochimaru could be a main character in some cases. His thirst for knowledge and power could lead him to explore the limbo, and Naruto may have to deal with him there.
One implication is that he becomes much more powerful. The Rinnegan gives him access to powerful abilities like the Six Paths techniques, which would change the power dynamics in battles in the fanfiction. He could now face stronger enemies more easily.
Well, in Naruto Limbo fanfiction, the idea of alternate realities within Limbo is quite fascinating. Some fanfictions might explore what if different events happened in Limbo, like if a character got trapped there permanently and had to find a way out. Also, the way Limbo can be used as a training ground in some fanfictions, where characters can hone their skills in a unique environment, is really interesting.
In Naruto fanfiction, the Rinnegan in Naruto is often portrayed in really cool and powerful ways. Some fanfics might give Naruto the ability to use all the Rinnegan powers to their fullest extent right away, like being able to effortlessly summon the Gedo Statue or use the Deva Path powers without any drawbacks. It's a way for writers to explore new storylines and make Naruto even more of a badass than he already was in the original series.
Another possibility is that it's a result of some strange chakra experiment gone wrong (or right). Scientists in the Naruto universe are always dabbling in chakra research. Maybe an experiment meant to enhance her natural abilities instead gives her the Rinnegan, and she then has to learn to control it quickly to avoid being consumed by its power.
If Naruto got the Rinnegan, he might become more cautious. The power of the Rinnegan is so great that he would realize he needs to be more careful with it. He wouldn't be as brash as before.
Well, when it comes to Naruto time travel and Rinnegan in fanfics, it's often about exploring new storylines. Maybe Naruto himself gets the Rinnegan and travels back in time to train his younger self. This would make him a much more powerful ninja at an earlier stage and could completely change the power balance in the Hidden Leaf Village and among the other ninja villages as well.
There's a fanfic where the female Naruto gets the Rinnegan and teams up with some unexpected allies. This fanfiction focuses on her journey to understand the true nature of the Rinnegan and how it can be used to bring peace to the ninja world. It's a great read as it shows her growth from a young kunoichi to a powerful force with the Rinnegan.
In a Rinnegan Naruto The Originals fanfiction, the story could focus on Naruto exploring the true origins of the Rinnegan. He might discover that the Rinnegan has a connection to his Uzumaki heritage that was previously unknown. This could lead to a whole new arc where he has to travel to different hidden villages or ancient ruins to uncover more about this powerful eye technique and how it relates to his family's past.