On a more positive note, the Sith Holocron could inspire new ways of thinking. Naruto, being the open - minded person he is, could take some of the concepts from the Holocron, like the Sith's focus on self - improvement (although in a very different way from the dark side), and apply it to his ninja training. He could also try to adapt some of the knowledge to create new jutsu that are more efficient and powerful, but without the dark undertones. This would lead to a new era of ninja development in his world.
Well, he might first be really confused. A Sith Holocron is from the Star Wars universe and Naruto is from his own ninja world. He could try to figure out how to open it, thinking it's some kind of new jutsu - related item. Maybe he'd accidentally activate it and get some Sith teachings that he doesn't understand at all, like the ways of the dark side which are completely different from his ninja values.
His story arc would become much darker. Instead of aiming to be a respected Hokage, he might aim to rule over the ninja world with an iron fist like a Sith Lord. His friends might turn into enemies as they oppose his new, dark ways.
Well, Naruto's determination could be seen as a Sith - like trait. The Sith value power and Naruto is always striving for power to protect his village. He could be a Sith who uses his shadow clones in a more menacing way, like sending them out to do his dark bidding instead of for good deeds.
I'm not sure if it's extremely popular. There are so many different types of Naruto fanfics out there, and while the idea of Naruto being a Sith is an interesting crossover concept, it might not appeal to the mainstream Naruto or Star Wars fan bases. It really depends on how well - written and creative the individual fanfic is.
One possible fanfiction could be about a Sith Lord from Star Wars ending up in the Naruto universe. Maybe he tries to use the Force to control the chakra, but finds that it's a completely different power system. He could then form an alliance with some of the villains in Naruto, like Orochimaru, who are also interested in power and dark arts.
In a Naruto - raised - Jedi - and - Sith fanfiction, Naruto would bring his unique perspective. His own experiences of being an outcast and then a hero in his world could shape how he raises these Star Wars characters. He might introduce the concept of teamwork like in his ninja teams to the Jedi, who already have a sense of community. With the Sith, he'd be faced with a huge challenge as the Sith ideology is based on self - gain and power - hunger. Naruto could use his own story of facing powerful enemies and not succumbing to evil to try and steer the young Sith away from the dark path.
If Naruto joined the Sith Empire in a fanfiction, it would be a clash of cultures. The Sith are all about self - gain and power through the dark side, while Naruto is about protecting his friends and village. However, Naruto might see an opportunity to change the Empire for the better. He could use his skills to gain the trust of some Sith, and then slowly introduce his own ideas of justice and equality. But he'd have to be careful not to be corrupted by the dark side himself, as it's always lurking in the Sith Empire.
One idea could be a crossover where a Naruto character somehow gets transported to the Star Wars universe and is mistaken for a potential Sith Warrior. They have to navigate the dark side teachings while also trying to find a way back home.
I'm not entirely sure specifically what a 'banished naruto sith fanfiction' is about without reading it. But generally, it might be a fan - created story where Naruto is banished and somehow gets involved with the Sith concept from Star Wars. It could be a very creative crossover where the author explores how Naruto's abilities and character would interact in a Sith - influenced world.
He would likely become more ruthless. As a Sith Emperor, Naruto would have to make tough decisions that go against his usually kind - hearted nature. For example, he might have to sacrifice some of his friends or allies for the greater good of his empire.