Yes, there are likely some fanfictions out there with this concept. Fanfiction is a creative space where authors can explore alternative storylines. However, it goes against the original Naruto storyline where Naruto's mother is Kushina Uzumaki.
Yes, there might be such fanfics out there. The Naruto fandom is quite large and diverse, with fans exploring all kinds of alternate storylines. However, this particular concept goes against the original canon where Naruto's mother is Kushina. But in the world of fanfiction, creativity knows no bounds.
In such fanfiction, one plot point could be how the relationship between Sakura and Naruto's father (presumably Minato) developed. Also, it would likely change Naruto's personality development. Since Sakura has different values and traits from Kushina, Naruto might grow up with different outlooks on life and his ninja career. Additionally, the interactions between Naruto and other characters like Sasuke and Kakashi would be different due to this new family dynamic.
Well, it would be a radical departure from the original Naruto plot. It might start with some kind of time - travel or alternate - reality scenario that led to Sakura being Naruto's mother. Maybe Sakura would pass on her medical skills to Naruto at an early age, and Naruto could be more focused on healing as well as fighting.
Perhaps it focuses on her relationships. It could show how she met Sakura's father and what their courtship was like. There might be some interesting stories about their first encounters and how they fell in love in a world full of ninjas.
Obviously, Sakura's mother herself. And her family members like her parents or siblings if they are relevant to the story. They could have influenced her in different ways.
Maybe a fanfiction where the mothers come back to life for a short time. Naruto and Sakura get to experience a mother - child relationship they never had. Their mothers could offer advice on their ninja training and personal lives. For example, Naruto's mother could teach him more about his Uzumaki heritage and Sakura's mother could give her tips on how to be a better medic - ninja.
In some fanfictions, Naruto's mother might be a character related to the Uchiha clan in a unique way. It could be someone who was secretly in love with an Uchiha and had Naruto as a result. Maybe she was a long - lost relative of the Uchiha who was trying to protect the clan's secrets through Naruto.
In fanfiction, Naruto and Sakura's friendship often takes on new and interesting dimensions. Sometimes, it's about Naruto finally understanding Sakura's deeper emotions and being there for her in ways he couldn't in the original story. For example, he might be the one to comfort her when she has self - doubts about her medical ninja skills.
In some fanfictions, Naruto's mother, Kushina, has a special connection with the Kyuubi. For example, some stories might explore how Kushina's chakra influenced the Kyuubi's behavior. Since she was the Jinchuriki before Naruto, her relationship with the Kyuubi could be a rich source of plot development in fanfiction.