A possible storyline could involve Naruto teaching Wonder Woman about the concept of 'ninja' which she finds fascinating. They could then use this new knowledge to form a special team. Along the way, they face a powerful villain who is trying to take over both their worlds. Naruto and Wonder Woman, with their combined skills and the strong bond of siblings, fight against this villain. Naruto might use his Sage Mode and Wonder Woman her flight and super strength to take on the enemy.
The storyline could start with Naruto somehow ending up in Wonder Woman's world. Maybe through a magical portal. Once there, he discovers his connection to Wonder Woman and decides to protect her as an older brother. They would then face various threats together, with Naruto using his ninja skills and Wonder Woman using her superpowers.
Well, one way it could work is if there was some sort of multiverse crossover concept. Maybe in a world where different fictional universes collide. Naruto's skills like his shadow clone jutsu could be used in interesting ways to help Wonder Woman in battles. He could also teach her about the importance of friendship and determination which are big themes in his story.
They could go on adventures to stop ancient evils that are awakening in both their worlds. For instance, an ancient demon from Naruto's world might be summoned by a villain in the DC universe. Together, they would have to use their combined skills to stop it. Naruto could use his Rasengan while Wonder Woman uses her bracelets to deflect attacks.
The older brother in the fanfiction might be a character with a tragic past. For example, he could have been experimented on by Orochimaru and gained some strange powers as a result. And he returns to the village later to protect Naruto from the threats that are coming towards him.
Well, it depends on the situation. If the fight takes place in the Naruto universe where Naruto can draw on natural chakra more easily and has the home - field advantage, he could be very strong. He also has his Nine - Tails chakra which is extremely powerful. On the other hand, Wonder Woman has years of combat training and her divine weapons. In a battle of wits and strategy, Naruto's experience in fighting various opponents in his world might give him an advantage, but Wonder Woman's overall power set is also very formidable.
One idea could be that Naruto, with his strong sense of justice and loyalty, helps Rias in the supernatural politics of her world. He might use his ninja skills to protect her and her peerage from other devils or threats. For example, when facing a powerful rival devil clan, Naruto's shadow clone jutsu could create a diversion while Rias plans a strategic attack.
Yes, there might be such fanfictions out there. The idea of crossing over two very different anime universes like Naruto and High School DxD (where Issei is from) and creating a family - like bond between the characters is an interesting concept that fanfiction writers might explore.
Perhaps in this fanfiction, Naruto has to keep his identity a secret from Minato. He could be from an alternate future where things went wrong, and he's there to make sure Minato becomes Hokage and prevents certain disasters. So he has to subtly guide Minato without revealing who he really is.
In a fanfiction where Naruto is Madara's older brother, it could completely change the Naruto universe's dynamics. For example, Naruto's ideals of peace and friendship might have influenced Madara at a young age, preventing him from going down the dark path he did in the original story. Naruto could have taught Madara about the power of bonds, which was something Madara seemed to have lost sight of later in his life. This would lead to a different series of events, perhaps even averting the many wars that took place in the Naruto world.
If Naruto was the older brother of Kushina, it would rewrite a lot of the backstory. For one, Naruto might be the one to introduce Kushina to Minato. He could see Minato's potential and think he would be a good match for his sister. Also, Naruto's skills and abilities could have a different origin. Maybe he learned some things from Kushina or their family that were unique. This would change his fight scenes and how he approaches challenges in the fanfiction. He might also have a different relationship with the Uzumaki clan as a whole, having more of a family - based influence within it.
No. Naruto and Laxus are from two completely different anime universes, Naruto and Fairy Tail respectively. While fanfiction can play around with all sorts of wild ideas, making Naruto Laxus' older brother is not a mainstream or even a common fanfiction concept. It would require a lot of creative world - building to make such a relationship seem plausible. For example, the writer would have to explain how Naruto, with his ninja skills and chakra system, could exist in the world of magic like Fairy Tail and have a family - like connection with Laxus. But as of now, this is not a typical fanfiction scenario.