What kind of new abilities could Naruto have in the fanfiction with the Rinnegan and Hyoton?

With the Rinnegan, Naruto might gain the power of the Human Path. This would allow him to read minds or rip out souls, which is a very dark and powerful ability that would be quite different from his usual positive - natured powers.

He could have the ability to use all six paths techniques right from the start. This means he could manipulate gravity like the Deva Path, absorb chakra like the Preta Path, and even revive the dead like the Outer Path.

He could perform powerful genjutsu with the Sharingan. Naruto, who was not really known for genjutsu before, would now be able to create illusions that are difficult to break. With the Rinnegan, he might be able to use the Six Paths techniques, like the ability to control gravity or absorb chakra attacks.

With the Rinnegan, Naruto could also gain the power of the Human Path. This might allow him to read the minds of his opponents or extract information from them in a very unique way. He could also use the Naraka Path to torture his enemies psychologically, which is a very dark but powerful ability that the Rinnegan offers.

Maybe he would gain the ability to control the life force of others in a new way. With the red Rinnegan, Naruto could potentially heal or harm on a much greater scale. He could revive the recently deceased by restoring their life force, or he could drain the life force of his enemies to weaken them. This would be a huge shift from his normal abilities and add a new moral dimension to his character as he decides when and how to use such a power.

Naruto might gain the ability to tap into a primal energy within him due to his wrath powers. This energy could allow him to heal faster when injured in battle. Also, he could have the power to influence the emotions of his enemies. When they look into his eyes during his wrath - filled moments, they could be filled with fear or hesitation. Additionally, his physical attacks could carry a sort of 'wrath - curse' that weakens his opponents over time as they are continuously exposed to his wrath - powered strikes.

With Mokuton, Naruto could grow trees instantly for various purposes like creating shelters or using them as weapons. And with Rinnegan, he might be able to use the Deva Path to control gravity, push or pull enemies. He could also use the Asura Path to create mechanical arms or other body parts for enhanced combat.

He could develop the ability to use the Six Paths Sage Mode more effectively. Since the Rinnegan is related to the Sage of Six Paths, it would enhance his connection to that power. He might also gain the ability to create chakra chains similar to those of the Uzumaki clan but with an added Rinnegan - powered twist.

He could gain the ability to absorb chakra on a much larger scale. With his greedy nature, he might use this to hoard chakra from others, making himself super - powerful. He could also gain the power to control the six paths, which he might use to dominate others rather than for the common good.

It could be that in this fanfiction, Naruto inherits the Rinnegan from a long-lost ancestor, unlocking hidden powers and facing new challenges.