Well, one key plot point could be the fem Naruto's struggle to be accepted in the Uchiha Jinjurikie Clan. Since she's an outsider, there might be a lot of prejudice she has to face. Another could be her discovery of unique powers within the clan that she has to master. And of course, there would likely be some sort of conflict, either internal within the clan or external threats that she has to help the clan fight against.
The key plot points could involve fem Naruto trying to balance her own identity with that of the Uchiha Jinjurikie Clan. She may have to learn their ways, which are very different from what she's used to. There could be a plot point where she discovers a hidden power within herself that is connected to the clan's Jinjuriki heritage. This power could attract the attention of enemies, both those who oppose the Uchiha and those who fear the power of the Jinjuriki. So, she has to not only master this power but also protect the clan from those who would do them harm.
Fem Naruto could bring new ideas and perspectives to the Uchiha Jinjurikie Clan. Her unique background might inspire the clan to be more open - minded. For example, if the clan has some traditional but restrictive rules, she could challenge them in a positive way.
One key plot point could be Naruto's discovery of the Uchiha Rebellion. He might overhear some plans or see some signs that alert him to the upcoming chaos. This discovery then sets the stage for his attempts to escape.
If Naruto saved the Uchiha clan, the story of the Hidden Leaf Village would be rewritten. The history of the Uchiha's massacre would no longer be a dark stain on the village's past. The Uchiha would contribute their unique skills and abilities to the village's development. For example, their Sharingan abilities could be used for better security or in battles against common enemies. There would also be a change in the relationships between characters. People who were once enemies of the Uchiha might have to learn to work with them.
Well, one possible interesting plot point could be Sakura using her medical ninjutsu in a unique way to heal the Uchiha members from some sort of affliction that was threatening the clan. Maybe she discovers a new form of chakra control that can reverse the effects of the Sharingan's overuse, which is often a problem in the Uchiha clan.
The plot might also focus on her relationships. As a fem Naruto who is an Uchiha Jinjuriki, her friendships with Sasuke and others would be different. She might have a deeper connection with Sasuke as they now share the Uchiha heritage in a way. And her relationship with the other villagers would change too. Some might fear her, while others see her as a symbol of hope. She could use her powers to bridge the gap between the different factions in the village.
In a Naruto joins the Uchiha clan fanfiction, he could be adopted by an Uchiha. For example, if Sasuke had a change of heart early on and decided to bring Naruto into the clan. Naruto would then be exposed to the Uchiha's dark past and their thirst for revenge. He could use his own positive attitude to try and change the clan's perspective. And he'd surely have to train hard to keep up with the Uchiha's high standards in combat and ninja skills.
Well, in this fanfiction scenario where Naruto kills the Uchiha clan, it would mean the end of the Sharingan bloodline in a very unexpected way. This would have huge implications for the ninja world. Without the Uchiha, there would be no potential for the Mangekyou Sharingan or the Eternal Mangekyou Sharingan. The balance of power in the ninja world might shift as the Uchiha were quite powerful. And Naruto himself would be a very different character. He's always been about protecting and saving people, so this act would make him a much darker and more complex figure, almost an anti - hero.
The plot could involve the younger brother trying to protect Naruto. Since Naruto is female in this universe, she might be more vulnerable in some ways. The younger brother could use his Uchiha powers to fend off those who would harm her, all while dealing with the politics of the Uchiha clan.
One possible plot twist could be that Naruto discovers his Uchiha heritage through a long - lost scroll or a prophecy. This would completely change his relationship with Sasuke, as they would now be related in a way. Another twist could be that Naruto has to deal with the dark side of the Uchiha legacy, like the Curse of Hatred, which has been passed down in the clan.
One idea could be exploring the hidden powers within the Uchiha clan that were never fully revealed during the actual wars. For example, there might be ancient Uchiha techniques passed down secretly. Another could be focusing on the relationships between different Uchiha members during the chaos of the wars, like how they support or betray each other. Maybe a young Uchiha discovers a new way to use their Sharingan that gives them an edge in the battles.