Perhaps the mindscape is in danger, and Naruto has to protect his parents' memories within it. There could be some dark force trying to corrupt or erase those memories. Naruto would then have to fight this force using his own strength and the connection he has with his parents. Along the way, he could also unlock hidden aspects of his own personality that were influenced by his parents.
Another plotline could involve Naruto's parents communicating with him in the mindscape. They might give him advice on how to deal with his current challenges, like fighting powerful enemies or handling the politics within the village. His father could teach him some advanced jutsu techniques, while his mother could offer emotional support and wisdom on relationships.
One possible plotline could be Naruto exploring his parents' memories in the mindscape. He might discover secrets about their past, like how they met or their early days as shinobi. For example, he could find out about his father's training and how his mother came to be a jinchuriki. This could lead to Naruto gaining new powers or a deeper understanding of his heritage.
One possible plotline could be that Minato and Kushina raise Naruto as a normal child in Konoha. Naruto would grow up with their love and guidance, which would significantly change his personality. He might be more confident from the start and not have that intense need to prove himself. Also, Minato could train Naruto personally, and Naruto might inherit his father's skills much earlier, leading to different adventures and battles in the ninja world.
In the fanfic, Naruto could die from an unexpected illness. His parents, who have been watching over him in spirit, are devastated. They might try to find a way to communicate with the living to tell them how special Naruto was. The mourning process could involve them seeing how the village comes together to remember Naruto, with his friends and comrades sharing stories of their adventures together. This would make his parents realize the kind of person Naruto had become and how much he meant to everyone.
One possible plotline could be Naruto's search for his parents' identity. Even though they abandoned him, he might be curious about who they were and why they left. He could go on a journey, following small clues he discovers along the way. Another plotline could be his struggle to fit in the village. Without the idea of his parents being heroes of the village, he might face more discrimination than in the original story.
Perhaps the story could revolve around their parents preparing Anna and Elsa for their future roles as rulers. With their parents' alive, they'd have a more traditional upbringing in terms of learning diplomacy and leadership. The family could also be involved in establishing new trade relations or cultural exchanges. And Elsa's powers might be seen as a great asset to be used for the betterment of Arendelle under the watchful eyes of her parents, instead of a feared secret.
She might encounter Naruto's hidden fears and help him face them. Maybe she'll discover memories Naruto has forgotten or suppressed.
One possible plotline could be a comical take where Naruto, perhaps as a baby or in a situation where he's regressed to a younger state in diapers, accidentally uses his newfound baby - like clumsiness to his advantage in a prank - like way against his friends. For example, he might 'accidentally' spill something on someone while being carried, leading to a series of funny events.
One possible plotline could be that Naruto and Ino are on a mission together. They start off bickering like they used to in the original series, but as the mission progresses, they begin to understand each other better. For example, they might face a powerful enemy that forces them to rely on each other's unique skills. Naruto's brute strength and Ino's mind - control abilities could complement each other in combat. Another plotline could be a more emotional one where Ino helps Naruto deal with his inner demons related to his past. She could use her skills to get inside his head in a more positive way and help him come to terms with things.
Perhaps a plot where Himawari discovers a new and rare chakra ability, and Naruto helps her to understand and control it. They might go on a journey to find someone who can further teach her about this power. This could involve meeting old friends of Naruto's along the way and having various adventures together.
One possibility is that Asura Otsutsuki could impart some ancient knowledge or power to Naruto. Maybe he reveals secrets about the Otsutsuki clan that could help Naruto in his battles or in understanding the world better.
In this fanfiction, perhaps Ashura Otsutsuki in the mindscape is trying to convey a message about an upcoming threat to the Naruto world. He could be guiding the protagonist to gather certain artifacts or allies to face this threat. For example, he might lead the character to an ancient temple where a powerful weapon lies, which is crucial to defeat the new enemy.