Perhaps a story where Kushina is resurrected somehow and has to adapt to the new world that Sakura is a part of. They could start off as strangers but gradually become friends as Kushina learns about the modern ninja techniques and Sakura learns from Kushina's old - fashioned but effective ninja wisdom.
One idea could be a story where Kushina and Sakura team up on a mission in a new and dangerous land. They have to rely on each other's unique skills, like Kushina's powerful chakra and Sakura's medical ninjutsu and combat abilities. Along the way, they face various challenges that strengthen their bond as friends and comrades.
One plot idea could be Kurama and Kushina teaming up to protect the Hidden Leaf Village from a new, powerful enemy. They could combine their unique abilities, like Kushina's strong chakra chains and Kurama's immense power, to fend off the threat.
One plot idea could be that Sakura discovers some long - lost scrolls left by Kushina. Through reading them, she starts to have dreams about Kushina and gradually forms a connection. As she delves deeper into Kushina's past, she realizes they have more in common than she thought, and a bond forms between them.
A possible plot is that there is a mysterious force that targets the Uzumaki and Uchiha clans. Naruto, Kushina and Mikoto have to team up. Kushina uses her powerful chakra and Mikoto her Uchiha skills, while Naruto uses his determination and new jutsus he has learned. They fight against this unknown enemy to save their clans and the village.
One plot idea could be Kushina being overly possessive when Naruto starts making new friends in the village. She might be constantly worried about his safety and try to limit his interactions in a motherly yet overbearing way. For example, she could be hesitant when Naruto wants to go on missions with his friends at first.
One plot idea could be a story where Naruto discovers hidden memories of his mother Kushina and her relationship with Mikoto. Maybe they were friends who had some sort of unfulfilled promise. Naruto then tries to understand more about their past and in the process, he uncovers secrets that could change the way he views his family and the village.
One idea could be a story where Naruto discovers some long - lost Senju abilities passed down from Kushina. This could lead to him having new powers and a deeper connection to the history of the Hidden Leaf. For example, he might be able to use some unique wood - style jutsu in a new way.
Perhaps a story where Mito and Kushina train Naruto in some ancient Uzumaki techniques. Naruto is always eager to learn new things and become stronger. Mito could teach him about the more spiritual and sealing aspects of the Uzumaki powers, while Kushina could focus on the combat - related applications of their chakra. This would not only strengthen Naruto but also deepen his connection to his Uzumaki roots.
A plot could revolve around Kushina having premonitions about the future of her unborn child during her pregnancy. She might have dreams that she tries to interpret, and this could add an element of mystery. Also, it could be interesting to see how her pregnancy affects her ninja duties, if she has to take a break or if she finds new ways to contribute while pregnant.
Perhaps in the fanfiction, God Naruto discovers a hidden realm where Kushina is trapped. He has to overcome various challenges and trials in this realm to rescue her. Once they are reunited, they could work together to bring about a new era of peace and prosperity in the ninja world. It could also be interesting if God Naruto shares his godly powers with Kushina, making her an even more formidable ninja.