One consequence could be a change in his relationships. His friends might view him differently, perhaps with a mix of awe and a bit of fear due to his new - found, almost god - like power. Also, it could potentially change the power balance in the ninja world, causing other villages to either seek his alliance or plot against him.
In some fanfictions, when Naruto absorbs the bijuu, he might gain overwhelming power. This could lead to him being able to easily defeat powerful enemies that were previously a threat. For example, he could single - handedly take on the Akatsuki without much difficulty.
In fanfiction, if Naruto absorbs all the bijuu, he would likely become an extremely powerful being. His chakra reserves would be off the charts, enabling him to perform incredibly powerful jutsu without much strain. He might also gain new abilities specific to each bijuu, like the ability to control different elements more proficiently or use their unique powers in combat.
Well, if Naruto absorbs all bijuu in this fanfiction, he'd probably be seen as a sort of super - being in the ninja world. His status would change drastically. He might face new challenges too, like dealing with the political unrest that his newfound power could cause. People would either fear him or try to use him for their own gains. And on a more personal level, he'd have to learn to control all that power, which could be a huge struggle, considering the different natures of the bijuu.
One consequence could be an increase in Naruto's power. Since Dark Naruto represents his repressed negative emotions and power, absorbing it might give him a boost in strength and abilities. He could gain new jutsu or have enhanced versions of his existing ones.
One possible consequence could be an immediate power boost. Since Dark Naruto represents the repressed and negative aspects of Naruto, absorbing it might give Naruto access to a new level of strength that was previously locked away. This new power could be both physical and mental, allowing him to face stronger opponents.
His character would likely develop a sense of greater responsibility. With all that power from the bijuu, he knows he has to use it for good. He might become more serious and less of the carefree Naruto we know at first. He'd also grow in terms of his self - confidence, knowing he has such incredible strength.
The overall theme of the fanfiction could change. If Naruto absorbs Orochimaru, the story could start to explore themes like the nature of power and corruption more deeply. It might also delve into how Naruto can use Orochimaru's power for good, rather than succumbing to the evil associated with it. This could make the fanfiction more of a moral exploration within the Naruto universe.
A plot twist could be that the bijuu themselves have a collective consciousness that Naruto doesn't expect when he absorbs them. This consciousness could start to influence Naruto's actions during his time travels. For instance, they might guide him towards certain events or people that they believe are important for their own reasons. Maybe they want to correct some past wrongs in the ninja world that were related to their existence. This would add an interesting layer to the story as Naruto has to deal with not only the power of the bijuu but also their will.
One possible consequence is that he might become more powerful. With his dark emotions out of the way, he could focus better on his training and unlock new abilities. Another consequence could be that he becomes more isolated. Since his dark emotions were a part of what made him relatable to others, without them, he might seem distant.
When Naruto absorbs Zetsu in the fanfiction, it could impact his mental state as well. Zetsu has been involved in many dark and devious plans. Naruto might have to struggle with the knowledge and influence of those. However, on the positive side, Naruto could use Zetsu's ability to communicate with the plants and gather intelligence from the natural world. This would expand his range of information sources and give him an edge in strategic planning during battles.
Naruto might be ostracized by some in the ninja world. People could be afraid of his new power, especially if they don't understand it. They might see him as a threat, similar to how they once feared the Uchiha for their powerful Sharingan. So, he may have to deal with a lot of distrust from his comrades and the general public.