One possible plotline could be Sasuke's reintegration into the village. Sakura could play a big part in helping him adjust. They might face some opposition from villagers who still don't trust Sasuke completely. Another plotline could be their journey to find missing - nin or remnants of the enemy forces. During this, their relationship could develop as they rely on each other for support.
In this fanfic, perhaps they finally have a chance to rebuild their relationship. Sakura might use this post - war time to really understand Sasuke on a deeper level. They could start a family and Sasuke could finally let go of his past grudges and traumas, and focus on building a future with Sakura.
One possible plotline could be Sasuke becoming increasingly possessive as Sakura's popularity or friendships grow. He might start to isolate her from others, thinking it's for her own good.
One possible plotline could be that Sakura, with her medical ninjutsu skills, is tasked with treating Fugaku during a time of crisis in the Uchiha clan. This could lead to an unexpected friendship as they interact more. Another could be a time - travel scenario where Sakura goes back in time and meets a younger Fugaku, changing the course of Uchiha history. Or perhaps they are brought together by a common enemy that forces them to combine their unique abilities to fight.
To develop Sasuke, explore his relationships with other characters besides Sakura, like his old friends from the village. This would give more depth to his character. For Sakura, have her face some tough moral dilemmas that force her to make difficult decisions. This would show her growth and maturity. Also, show their relationship evolving over time through small, everyday interactions as well as big, life - changing events.
One interesting plot idea could be Sasuke and Sakura going on a dangerous mission together where they have to rely on each other completely. This would strengthen their bond and lead to some deep emotional exchanges.
Perhaps Sasuke uses Sakura to get closer to some information. He might know that Sakura has connections or knowledge that can help him in his quest for revenge or for protecting the village. So he uses her in a strategic way while she is initially unaware of his motives. As the story progresses, their relationship could develop in complex ways.
One of the most popular themes is redemption. Sasuke has made many mistakes in his past, and fanfictions often explore how Sakura can be a part of his journey towards redemption. For example, she might help him face his inner demons and find peace within himself.
There's a fanfiction where Sasuke and Sakura are on a mission together in a foreign land. They encounter many challenges that force them to rely on each other more than ever. This story could explore their growing bond as they face these difficulties, and how their feelings for each other develop in the midst of danger.
One great fanfiction could be 'A New Beginning for Sasuke and Sakura'. In it, they have to team up to face a new threat to the village. It shows their growth as characters and how their relationship develops in a more in - depth way compared to the original series.
One possible plotline could be that after Sasuke has finally returned to the village and reconciled with Sakura, they start to rebuild their relationship. They go on dates, share their feelings and experiences during their time apart, and gradually their love deepens until they reach a point of expressing their physical love for each other.