The story could develop in many ways. One way is that Naruto might become a target of the Akatsuki. Since he knows their secrets and has left their group, they would see him as a threat. This could lead to a series of battles where Naruto has to fight against the Akatsuki members one by one to protect himself and his village.
Well, it could go in many directions. For example, his family might start to search for him, which could lead to a series of adventures where they encounter new characters and face various challenges. His wife, if he has one in the story, might become stronger and more independent in his absence, vowing to bring him back.
The story would take a very different turn. Naruto's godlike abilities would give Akatsuki an edge in battles. But his values would clash with the group's. This could lead to him either changing Akatsuki or being forced out. It would also affect his relationships with his old friends in Konoha. They might see him as a traitor at first, but as the story unfolds, they could come to understand his motives.
Naruto would likely become more determined. He has always been a fighter, and without Kurama, he would have to rely solely on his own skills and training. He might become more stealthy and strategic, since he wouldn't have the brute power of Kurama to fall back on.
The story could take a dark turn for Stiles. Without Scott, he might become more vulnerable and attract the wrong kind of attention. He could end up in a dangerous situation that forces him to grow and become stronger on his own.
Well, the story could develop in many ways. Ash might go into a deep depression at first. He has been with Pikachu for so long that its absence would be a huge blow. He could start doubting his abilities as a Pokémon trainer.
In a fanfiction where Naruto is in the Akatsuki, his character would grow in terms of understanding different perspectives. He'd interact with characters who have very different backgrounds and motives from his friends in Konoha. His sense of loyalty would be tested as he'd be in a group that is generally considered the enemy. This could lead to him becoming more independent in his decision - making, rather than relying on the approval of his village. He might also become more calculating, as the Akatsuki often have to plan their moves carefully to avoid detection and achieve their goals.
Since the Akatsuki often deals with sealing techniques, Naruto's skills with the Nine - Tails' seal could be enhanced in a different way. He might learn to better control the Nine - Tails' power without relying on the methods taught in Konoha. Also, his physical abilities could be trained differently. Maybe he'd focus more on speed and stealth, which are qualities often valued by the Akatsuki.
Naruto joining Akatsuki would be a shock to many members. But some like Pain might see potential in him. Pain could view Naruto as a tool to achieve his goals or as a symbol of change within the organization. Naruto would try to convince Pain that there are better ways than destruction. Sakura's relationship with Kakuzu could be interesting. Kakuzu is all about money, and Sakura could use her knowledge of Konoha's economy to bargain with him. This could lead to a complex relationship where they are both trying to outwit each other while also having a certain level of respect for each other's skills.
He may develop trust issues. Being abandoned by his mother could make him more cautious about getting close to people. However, this could also make him more determined to prove himself. He might strive to be the best ninja in the village to show that he is worthy of love and acceptance, despite being abandoned. For example, he could push himself extra hard during training.
His character would become more conflicted. He'd have to balance his own beliefs with the Akatsuki's motives.