A possible plotline could involve Naruto's return after having some sort of spiritual awakening. He returns to the village, and Sakura is the first person he seeks out. Their interactions then lead to a deeper understanding of their feelings for each other. This could involve flashbacks to their past experiences together and how those have shaped their current relationship.
One possible plotline could be Kushina's reunion with Naruto and how she uses her skills and wisdom to help him in his battles. For example, she might teach him some new jutsu that only she knew. Another plotline could involve Kushina exploring the new ninja world that has changed so much since her time. She could interact with characters like Sasuke and Sakura, and have an impact on their development as well.
One possible plotline could be Naruto coming back with new and powerful jutsu. For example, he might have learned some ancient and forbidden techniques during his time away. This would make him even more of a force to be reckoned with in the Hidden Leaf Village.
One interesting plotline could be Naruto and Sakura traveling back in time to their early days at the academy. They could use their future knowledge to change certain events, like preventing some of the early hardships they faced. For example, Naruto might stop himself from pulling that first prank that got him in so much trouble, and Sakura could avoid some of her early insecurities.
Obviously, Naruto and Sakura are the main characters. Naruto is the one who has been away and is now coming back. Sakura, being his friend and potentially more in the context of this fanfiction, is waiting for him in the village. Their relationship is a central focus, and other characters from the Naruto universe might also play supporting roles depending on the specific story.
A 'narusaku naruto returns fanfic' could be about many things. It might focus on Naruto's return in a scenario where he has a relationship with Sakura. It could involve adventures they go on together, how their relationship has developed during his time away and his return, and how they face new challenges in the ninja world as a couple.
The 'narusaku naruto returns from training fanfiction' could have Naruto coming back with a newfound confidence. Since he has been away for training, he might have a different perspective on things. Regarding his relationship with Sakura, he could start to see her in a new light. He may also bring back knowledge of new ninja techniques and strategies that could potentially change the way the village approaches combat and defense.
Another plotline might involve Edward reuniting with his old friends and family. There could be emotional reunions and then they all team up to face a new, greater threat together. They might have to overcome past misunderstandings and grow stronger as a group. For example, Edward could find that his brother Alphonse has developed in unexpected ways while he was away, and they have to readjust to each other.
One interesting plotline could be Lily Potter's adjustment to the new era she returns to. Maybe she has to deal with new magical technologies and social changes. Another could be her reuniting with old friends and family, like Harry, and how their relationships evolve.
One possible plotline could be Gabriel coming back with new powers and a mission to set things right in the Supernatural world. Maybe he teams up with the Winchesters in a way they never expected.
One interesting plotline could be Harry Potter's return to Hogwarts as a teacher. He could pass on his knowledge and experiences to the new generation of students. Another might be his return to the wizarding world after a long absence and having to deal with new threats that have emerged in his time away.