A possible plot development could be that Naruto's amnesia is caused by a powerful enemy's jutsu. Sasuke then sets out on a quest to find a way to reverse the effect. Along the way, they encounter other ninja clans who either help or hinder their progress, adding more depth and adventure to the fanfic.
Perhaps Naruto's amnesia makes him forget his friends completely. This would lead to a situation where his friends, especially Sasuke, have to re - introduce themselves and try to rebuild their friendships from scratch. It could also create a lot of emotional turmoil as Naruto might not trust them at first, thinking they are strangers.
One possible plot development could be that Sasuke tries to help Naruto regain his memories. He might take Naruto to all the places that hold significance in their relationship, like the Valley of the End. Another could be that Naruto's amnesia causes him to forget his ninja skills, so he has to relearn everything from basic training, which would be an interesting journey to follow.
Sasuke might also be angry. Angry at the situation, angry at whoever or whatever caused Naruto's amnesia. His anger could fuel his determination to find a cure. He would push himself and Naruto harder in training, hoping that it would jog Naruto's memory, all while trying to hide his true feelings of worry and fear for Naruto's well - being.
A possible plot development is that Ruby's amnesia could be a result of some dark magic or a new type of Grimm attack. As she tries to recover her memories, she discovers new powers within herself that she didn't know existed before. This new power could be related to her amnesia in some way, like it was locked away and the amnesia event somehow unlocked it. Meanwhile, her friends are on a quest to find a way to reverse her amnesia, which leads them to encounter new allies and enemies along the way.
In the 'naruto has no eyes fanfiction', the plot might involve Naruto discovering a new form of chakra that is unique to his condition. This new chakra could give him abilities that he didn't have before, like the ability to sense the emotions of his opponents. There could also be a plot twist where Naruto's blindness is actually a part of a greater prophecy, and he has to fulfill it in a way that no one expected.
One possible plot development could be that Naruto's friends rally around him to protect him while he recovers. They might seek revenge on the one who stabbed him.
Well, one possible plot development could be Naruto facing different challenges as a female in the ninja world. For example, she might have to deal with gender discrimination within the ninja clans. Another could be her relationships with other characters changing. Maybe Sasuke would see her in a new light and their dynamic would be different. Also, Naruto as a female could inspire other female characters to be more confident and break gender barriers in the shinobi society.
A possible plot development is that Naruto's study of chakra helps him master a new and powerful jutsu. For instance, he might develop a jutsu that can disrupt an opponent's chakra flow from a long distance. This would give him an edge in battles.
A third possible plot development could be the exploration of family values. Naruto, having grown up longing for a family, would be very committed to building a good family environment for Mordred. This could involve teaching Mordred about love, trust, and the importance of family bonds. Mordred, who may not have had such a positive family experience before, would then have to learn and grow in this new family setting. There could also be moments where Mordred has to defend Naruto or their family from external threats, which would strengthen their bond further.
One possible plot development could be Naruto leaving due to a misunderstanding. For example, if he is wrongly accused of a crime within the team. Another could be that he feels he is holding the team back in some way and decides to leave on his own to become stronger alone. Maybe he has a personal goal that he believes he can't achieve while still being part of Team 7.
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 could be the initial shock and adjustment for both Naruto and Mei. They would have to deal with the reactions of their respective villages. Naruto's friends in Konoha might be surprised, and Mei's allies in Kirigakure would also have their thoughts.