In the fanfic, Naruto may learn of his heritage through a new character. Maybe a mysterious ninja shows up who has some connection to his family. This ninja could start to train Naruto in ways that are specific to his family's ninja techniques, revealing more about his heritage as they train together.
Another plot development could be that Naruto discovers his heritage in a time of crisis. For example, when the village is under attack and he needs to find a new power source to protect it. As he searches, he stumbles upon the truth about his family and realizes that he has some unique abilities passed down through his bloodline that can help him save the village.
Well, one possible plot development could be that Naruto immediately starts training in the unique abilities related to his heritage. For example, if his heritage involves some special jutsu, he might quickly master it and use it to gain recognition in the village. This could change his relationship with his peers as they see him in a new light.
One possible plot twist could be that his heritage is linked to an enemy he thought was unrelated. So he has to reevaluate his views on the whole conflict.
Well, one possible plot development could be that Harry quickly adapts to his new - found heritage and uses it to gain an edge in his magical studies at Hogwarts. Maybe he discovers some long - lost family magic that gives him an advantage in Defense Against the Dark Arts.
One possible plot development could be that Naruto uses Kirin to surprise his enemies. Since it's not a jutsu associated with him usually, it would catch his foes off - guard.
One possible plot development is that Naruto could start to explore the secrets of his clan. He might search for ancient techniques or artifacts related to his heritage.
One possible plot development is that Naruto's use of the eight gates causes him to have internal struggles. He might have to deal with the physical and mental toll it takes on him. For instance, he could struggle with controlling the power and not going overboard during battles.
One possible plot development could be Naruto seeking out other Uzumaki descendants. He might want to learn more about his heritage from them.
Well, he might start by finding an old master who still practices ninshu. This master could teach Naruto the basic principles of ninshu, like the importance of harmony and understanding. Naruto would then use these new teachings to try and bring peace between the warring ninja clans in the Hidden Leaf Village.
Well, in some fanfics, Naruto might first discover his father's identity through a hidden scroll. This could lead to him learning about his father's special jutsu. For example, he could find out about Minato's Flying Thunder God Technique and start training to master it himself, seeing it as a connection to his father.
Obviously, Naruto himself is a key character as the story is about him learning his heritage. His mentor, like Kakashi, could also play an important role. Kakashi might notice some strange things about Naruto's abilities and start to suspect that there's more to his heritage. Then he could guide Naruto in the discovery process.