It could be that Naruto is addicted to the idea of proving himself to the village. This leads him to take on extremely dangerous missions one after another. His addiction to this self - validation puts his life at risk, and his friends and mentors have to convince him that his worth is not just measured by these dangerous feats.
One plotline could be that Naruto discovers he has Blue Lantern powers. He then has to learn how to control them while still maintaining his ninja skills. Another could be that the Naruto world is facing a new threat that can only be defeated by the power of hope, so Naruto as a Blue Lantern steps up to the challenge.
One possible plotline could be that Sakura tries to join the Uchiha clan in some way. Maybe she discovers a long - lost connection to the clan and wants to be a part of it.
A plotline could be that Bella starts working for a family with a very difficult child. At first, she struggles to connect with the child, but through her patience and understanding, she finally manages to break through and build a strong bond. Meanwhile, there could be some family drama in the background, like the parents are having relationship problems and Bella has to navigate through that as well.
Perhaps Draco is a bearer of a secret family legacy. This legacy could be a powerful magic that has been passed down in his family but was lost over time. In the fanfiction, he discovers that he is the bearer of this magic and has to learn how to use it while also dealing with the expectations and rivalries within his family.
A plotline might involve Zorua having a special power that only Ash can help it control. So Ash embarks on a journey with Zorua to figure out how to master this power. Along the way, they face various challenges and also meet other Pokémon and trainers. This could also lead to Ash learning more about the lore of Zorua and its kind in the Pokémon world. Maybe there are ancient secrets related to Zorua that Ash uncovers during their adventures.
One possible plotline could be that Sakura discovers she has a hidden link to the Kyuubi. This link starts to give her new powers, and she has to learn to control them while also hiding it from her friends. Another could be that the Kyuubi is somehow reincarnated into Sakura, and she has to deal with the memories and instincts of the Kyuubi.
A plotline could involve Saphira as a human getting involved in a conflict that was originally related to her non - human self. She might use her unique insights from her previous form to solve the problem, while also dealing with the fact that she is now physically weaker and has to rely more on her wits and the help of others. For example, if there was a war between different species in her non - human world, as a human she could try to broker peace using her understanding of both sides.
One possible plotline could be that of a resistance fighter in 1943. He or she is secretly working against the occupying forces, passing on information and helping the underground movement. Another could be a story about a group of factory workers in 1943 who are trying to increase production for the war effort while facing difficult working conditions.
One plotline could be Naruto being the only one who can tame the Juubi. So, he has to go on a journey to master the Juubi's power and use it for good. Another could be that the Juubi is somehow split into different parts, and Naruto has to find all the parts to prevent an evil force from using it to destroy the world.
A possible plotline is that there is a hidden village in the Naruto world that is built around the worship and use of dragon lacrima. The main characters, like Sasuke and Naruto, are invited to this village for a tournament. During the tournament, they discover a conspiracy involving the misuse of dragon lacrima that could endanger the entire Naruto world.