Another fanfiction concept could be that Team 8 has to adapt to the different technology in RWBY. They are used to their ninja tools, but in RWBY, there are things like mechs and advanced weaponry. Kiba might be really interested in the mechanical aspects and try to incorporate some of that into his own fighting style while still using his ninja abilities.
One idea could be that Naruto Team 8 is transported to the RWBY world. They could team up with Team RWBY to fight against a common enemy, like the Grimm. Shino could use his bugs to detect the Grimm's movements in ways that the RWBY characters haven't seen before. Kiba and Akamaru could add an interesting dynamic with their more physical combat style.
One idea could be Cloud Strife getting dropped into the RWBY world and having to team up with Team RWBY to fight off a new type of Grimm that is resistant to normal Huntsman and Huntress attacks. His skills with the Buster Sword would be a great asset.
They could also be recruited by S.H.I.E.L.D. Fury might see their potential and want to use them in missions. Naruto would be eager to prove himself and help, while Sasuke would be more cautious. Their presence would cause quite a stir among the existing Marvel heroes, some being curious and others a bit wary of these new - comers with such different powers.
In the RWBY universe, Naruto would be exposed to different types of threats and challenges. This would force him to adapt and grow. For example, he would have to deal with the Grimm, which are very different from the enemies in his own world. His Kitsune powers might also evolve in response to these new challenges, and he could become more strategic in his fighting style.
The chakra system in Naruto could be related to Dust in RWBY. For example, fire - based chakra could be seen as a more natural and internal form of fire Dust. Naruto's clones could be used in RWBY battles in creative ways. They could be used for distractions against Grimm or other enemies, while the RWBY characters attack from different angles. Sasuke's Sharingan could have an interesting interaction with the Aura in RWBY. Maybe it could enhance one's ability to see through illusions or detect hidden threats more effectively.
Naruto could be a mentor - like figure. His experience with different types of combat and his rinnegan - enhanced perception would allow him to guide the RWBY characters in battles. He might help Ruby improve her scythe - wielding skills by teaching her some of his sword - fighting techniques that he learned from Sasuke.
One idea could be a story where Naruto and Ino are on a mission together. They start off bickering as they have different personalities. Naruto is all about brute force and charging ahead, while Ino is more strategic. But as the mission progresses, they learn to combine their strengths. Naruto listens to Ino's plans and Ino starts to see the value in Naruto's courage. Eventually, they become a great team and their friendship deepens.
One idea could be that Naruto and Sasuke team up to face a new and powerful enemy from a different dimension. This enemy has the ability to manipulate time, which throws the entire ninja world into chaos. Naruto and Sasuke, with their combined skills and understanding of each other, start to figure out the enemy's weaknesses. They have to rely on Naruto's Rasengan and Sage Mode, along with Sasuke's Sharingan and Rinnegan powers. Their journey to stop this enemy also involves them reconciling some of their past differences more deeply as they face challenges together.
Another possibility is a story in which a character from RWBY is sent to the Naruto world and then later ends up in the Overwatch universe. They could bring their unique combat style and start training with the different groups in each world, like learning ninjutsu in Naruto and using advanced tech in Overwatch.
One idea could be a crossover where Cinder somehow gets transported to the Naruto universe. She might initially try to use her powers to gain control, but then realizes she has to adapt to the new chakra - based powers. Meanwhile, RWBY characters could also end up in the Naruto world in search of Cinder and end up forming unexpected alliances with Naruto and his friends.
If Naruto were betrayed in RWBY fanfiction, his values would be put to the test. Naruto believes in friendship and hard work. Being betrayed would make him question those beliefs. He might start to become more cynical, which would be a big change from his usual positive self. On the other hand, he could also use this as an opportunity to grow. He could learn about the different values in the RWBY world and try to find a new path. And perhaps, in the end, he would be able to forgive the person who betrayed him, but not without a long and difficult journey.