Maybe the Jade Emperor sees Naruto's potential and decides to train him personally. This would lead to Naruto having to adapt to the strict and different ways of the celestial realm. He could then use the knowledge he gains to better protect his own world when he returns.
Another plot idea is that in a post - war world, Naruto and Hinata are seen as the saviors and are made emperor and empress. They start a new era of peace and prosperity. They introduce new policies like better education for all shinobi and civilians alike. They also face challenges from old grudges that some hold against the Hidden Leaf Village, but they overcome them together.
One idea could be Naruto using his ninja skills to bring about a new era of peace in his empire. He might establish a new system of governance that combines the values of the ninja world with those of an imperial regime. Another could be Naruto facing challenges from within his own court, with some nobles plotting against him because they don't trust his 'outsider' ways. Also, he could form alliances with other kingdoms or empires in a way that no one expected, perhaps through his unique understanding of people and his ability to make friends.
One idea could be Naruto being transported to the Star Wars universe and somehow becoming a Sith Emperor. He might use his ninja skills in a new and dark way. For example, his shadow clone jutsu could be used to deceive and manipulate his enemies in the Sith world.
One idea could be the Black Dragon Emperor's powers influencing Naruto's ninjutsu in unique ways. For example, his fire - based jutsus might gain a more dragon - like quality, like the flames taking on a blackish hue and having a more destructive force.
One idea could be Naruto as an emperor having to deal with political intrigue within the ninja villages. He might face challenges from rival clans who don't want to accept his new authority.
In some fanfictions, Jade might be a time - traveler. She goes back in time to the early days of the Hidden Leaf Village and tries to prevent certain events from happening that would later lead to great tragedies. Along the way, she forms unexpected friendships with the founders of the village and uses her modern - day knowledge (in a Naruto - ish way) to make changes.
One idea could be an emperor who has to deal with a hidden rebellion within his court. The rebels are disguised as loyal servants, and the emperor must use his wits to uncover them.
One idea could be that they initially panic about the pregnancy but then gradually grow excited as they start planning for the baby. They could face challenges like how to balance their careers and the upcoming parenthood.
In 'emperor naruto fanfiction', there might be the concept of Naruto having a new and powerful set of abilities. This could be related to his role as an 'emperor', like having the ability to control a special type of chakra that only he, as the leader, can access. It could also involve him having a new level of understanding of the ninja arts, which he uses to bring about great changes in the ninja world.
Perhaps Naruto is mistaken for a prophesied hero in the Jade Emperor's realm. So, he is given special treatment and tasks. But Naruto has to convince the Jade Emperor and others that he is from a different world and still wants to help. In the process, their characters interact and influence each other.