Well, in this fanfiction, perhaps Jonathan discovers amazing things about his descendants. Maybe he finds that they have carried on his good qualities or have developed unique abilities inspired by his legacy.
One possible scenario in this fanfiction is that Jonathan meets his descendants during a time - travel event. His descendants could be in a difficult situation, and his knowledge from the past helps them solve their problems. At the same time, they introduce him to new ways of thinking and living that he never imagined.
In fanfiction, when Jonathan Joestar meets his descendants, it could be a very emotional encounter. He might be proud to see how they've carried on his legacy, perhaps in the way they fight or their sense of justice. His descendants could also learn a great deal from him directly, like combat skills or the true meaning of honor.
One of the descendants could be Giorno. Giorno has his Golden Experience Stand and is quite different from Jonathan in many ways. He's part of the new generation of the Joestar family. Also, Josuke could be among those he meets. Josuke is known for his Crazy Diamond Stand and his strong sense of justice, which he may have inherited in part from Jonathan.
In this fanfiction, Jonathan is the central figure. His descendants, which could include a variety of individuals. There might be an older descendant who has preserved a lot of family history and is eager to share it with Jonathan. And there could also be a young, curious descendant who asks Jonathan a million questions about the past.
In this fanfiction, perhaps they could have an epic battle against a common enemy. Jotaro with his Star Platinum and Jonathan with his Hamon could combine their powers in a unique way.
In a 'Jay Meets Genie' fanfiction, Jay could be granted a wish that changes his whole life in the Descendants world. For example, he could wish for the ability to bring more villains' kids to Auradon without any resistance from the people there. This would cause a huge shift in the power dynamics and relationships between different characters.
They might have adventures like exploring ancient family secrets. Maybe they discover a hidden Stand ability that has been passed down in the family but lost over time. They could also go on a journey to find a long - lost family heirloom that has special powers related to their Joestar heritage.
A really interesting plot could be that there is a magical disturbance that connects the two worlds, and Jay and Aladdin are brought together to solve it. They would have to combine their skills - Jay's athleticism and Aladdin's street smarts. Along the way, they could meet some of Aladdin's friends like Abu and Jasmine. Jay would learn about the importance of true love from Aladdin's relationship with Jasmine, which could change his view on relationships in his own world.
Well, in this fanfiction, Chucky might initially be shocked to meet his daughter. He could try to protect her from the dark forces he's associated with. Maybe he'd teach her some of his unique survival skills.
In such a fanfiction, Naruto might finally get to know his mother's personality. He could learn about her hopes and dreams, and perhaps she would share some family secrets with him. For example, she might tell him about the Uzumaki clan's special abilities that he hadn't known before.
In the fanfiction, it's possible that Naruto's grandmother would introduce him to some long - lost relatives or friends of the family. This could open up new storylines for Naruto, like getting help from these new - found connections in his battles or in his quest to bring peace to the ninja world. She could also be a source of emotional support for Naruto, especially when he's feeling down about his past or the challenges he faces.