Naruto might also go through an identity crisis. His whole life has been centered around being a ninja with chakra and using powerful jutsu. Losing his chakra could make him question who he is and what his purpose is. He would have to redefine himself and find a new way to contribute to the ninja world. This could be a long and difficult process for him.
One possible consequence could be a change in his fighting style. Without his eye, he might have to rely more on his other senses like hearing and smell, similar to how blind ninja in the Naruto universe adapt. For example, he could focus more on using his chakra to sense the movements of his opponents.
Naruto could be forced to wear an embarrassing outfit for a day. Maybe something like a pink frilly dress, much to his dismay, and Sakura would get a good laugh out of it. He would be the talk of the village for that day.
The consequence might also be a shift in the balance of power in the Naruto universe. With all that chakra, Naruto could potentially change the political situation. He could end wars single - handedly or force the different ninja villages to re - evaluate their strategies. Moreover, his own physical and mental state might be affected. There could be a struggle within him to keep his identity intact while dealing with such an overwhelming power source.
One consequence could be that he becomes extremely powerful. His physical abilities like strength, speed, and endurance are enhanced. He can also use more powerful jutsus with the extra chakra boost from the Kyuubi.
Well, Naruto could also turn to his friends for help. In the Naruto universe, teamwork is highly emphasized. His friends like Sasuke, Sakura, and others have their own unique abilities. They could cover for Naruto's lack of chakra and together they could come up with strategies to fight opponents. Maybe Sasuke could use his Sharingan and ninjutsu skills, while Sakura could use her medical and combat skills to support the group.
Well, one consequence could be that his ability to perform jutsus is severely hampered. Since chakra coils are crucial for chakra flow, damaged ones might lead to erratic or weak chakra output, making it difficult for him to execute even basic techniques properly.
In some fanfictions, controlling the Kyuubi chakra might change Naruto's appearance. He could have some physical features related to the Kyuubi, like red - tinted eyes or a more ferocious look when using the chakra. Also, his relationships with others might be affected. Some might be in awe of his new power, while others could be afraid of him.
He might gain an enormous boost in his chakra reserves. This could make his jutsus much more powerful and enable him to perform complex techniques with ease.
In fanfic, when Naruto loses control, he might accidentally harm his friends. His powerful chakra could go berserk and cause destruction around him. For example, he could lose control during a battle and end up attacking his comrades instead of the enemy.
One consequence could be that his friends gain new powers. For example, if Sakura received some of the chakra, she might be able to enhance her strength even more. Another consequence could be that Naruto himself becomes weaker for a while as he has given away part of his power source.