His chakra abilities might be affected by the presence of Dust in RWBY's world. Maybe he could combine Dust with his jutsu. For example, using fire - type Dust to make his Fireball Jutsu even hotter. His physical abilities like speed and strength would still be an advantage, but he'd have to learn to use them in the context of fighting Grimm and other RWBY threats.
His water - based jutsu might improve. Since Kiri is known for its water ninjutsu, Naruto could learn new techniques or modify his existing ones. For example, he could combine his Rasengan with water chakra to create a more powerful and water - enhanced attack.
His ninjutsu might be enhanced. For example, his Rasengan could gain new properties due to the influence of Campione powers. His speed and strength, which were already considerable in the Naruto world, could be further increased. Maybe his ability to sense danger, which was related to his ninja training, could be upgraded to a more supernatural level in the Campione world.
He might gain some of Whitebeard's physical strength. Whitebeard was incredibly strong, and Naruto could inherit a portion of that. So he could be even more powerful in hand - to - hand combat. Also, he might get some kind of seismic - sense ability, like how Whitebeard could sense things through the vibrations in the air or ground.
His combat abilities would change a great deal. He'd likely be more proficient in close - range combat due to learning the Hyuuga's Gentle Fist. This would give him an edge in battles where quick, precise strikes are needed.
In this fanfiction, Naruto's abilities would change significantly. Firstly, he'd be exposed to Kumogakure's unique jutsu. He might learn more advanced lightning - style techniques which are prevalent in the Cloud Village. His combat style would be more brute - force - oriented, as the Raikage values strength. Also, his ability to lead and make strategic decisions would be molded by the Raikage's military - minded approach. He might not rely as much on his Uzumaki heritage in the beginning, but as he grows, he could find a way to combine the Raikage's teachings with his own innate abilities.
He'd probably be better at stealth. Haku was a master of it. Naruto might also have an earlier start with water - based jutsu and could potentially develop some ice - like jutsu similar to Haku's.
He would likely have the Sharingan. This would give him the ability to copy jutsu just by seeing them, and also predict his opponents' moves. His combat skills would be enhanced as he could use the Sharingan's powers during battles.
In a Themiscyra fanfiction, Naruto's shadow clone jutsu could have an interesting transformation. Maybe the clones could take on some Amazonian characteristics, like their armor or weapons. His rasengan could also be modified. For instance, it could be charged with the magic energy of Themiscyra, making it not only a powerful physical attack but also having some sort of magical effect, like being able to dispel dark magic or heal minor wounds in addition to causing damage.
His chakra abilities might be affected by the magic in the DxD world. Maybe his Rasengan could gain some magical properties.
Ruby's speed and scythe - fighting skills could be seen as a unique form of combat in the Naruto world. Her speed might be compared to that of some of the faster ninja like Rock Lee. Her scythe could be modified with chakra - based enhancements. Weiss's Glyphs could be related to some form of ninjutsu seals. She could use her Dust - infused attacks in combination with ninja techniques. Blake's shadow clones and her acrobatic combat style could be similar to some ninja's stealth and agility - based fighting. Yang's strength could be on par with some of the physically strong ninja like Tsunade, and her ability to absorb and release energy could be a new concept in the Naruto world.