Perhaps a future warrior discovers a hidden power within themselves that is related to an ancient Saiyan ritual. This power could be the key to saving the future as it gives them the ability to time - travel without the use of a time machine, allowing them to go back and change crucial events that led to the dark future they came from. They would face many challenges on this journey, including convincing the Z - fighters of their intentions.
One idea could be Future Gohan training a new generation of fighters in a post - apocalyptic world. He could pass on his skills and knowledge, creating a new hope for the future. Another plot could involve him finding a way to travel back in time to prevent the events that led to his world's destruction. Maybe he discovers a hidden power within himself that he didn't know he had and uses it to fight against the remaining threats in his world.
In 'Dragon Ball Z Watches the Future' fanfiction, a possible plot is that they watch a future where Earth is completely destroyed. This spurs them into action to find ways to prevent it. They might search for new allies or artifacts that could help. Maybe they discover that an old enemy they thought was defeated has a long - term plan that will culminate in Earth's destruction. So, they start looking into ways to counter that plan, like trying to find a way to seal the enemy permanently or find a weakness they didn't know about before.
One idea could be a story where Goku and Vegeta from Dragon Ball Super end up in the world of Dragon Ball GT by some sort of time - space rift. They then have to team up with the GT versions of themselves to fight a new, powerful enemy that is threatening both timelines.
A great plot idea in 'reborn in dragon ball fanfiction' could be the reborn character having a special connection with the Dragon Balls themselves. Instead of just using them to make wishes, they could communicate with the dragons in a more profound way. This connection might give them powers related to the Dragon Balls, such as the ability to teleport to the location of the Dragon Balls or to call upon the dragons for help in non - traditional ways during battles.
A possible plot is that the reincarnated person has a special power from their previous life that doesn't exist in the Dragon Ball world yet. Maybe it's a unique form of magic. This new power attracts the attention of both the heroes and the villains. The Z - fighters might be curious and want to learn from it, while the villains see it as a means to gain an advantage over their enemies.
A cool plot could involve a new villain who is able to control time in a different way than Cell or the Supreme Kai of Time. This villain uses time - based attacks and defenses, and the Z - fighters have to learn new techniques to combat it. In this fanfiction, the RPG elements could include leveling up their time - related skills. Also, a story about a character who is half - Namekian and half - human trying to find their place in the Dragon Ball universe could be really engaging.
Some fanfictions explore Bardock's connection to the Super Saiyan legend in more depth. Maybe he had a premonition or some sort of hidden knowledge about it that he was trying to pass on. This can lead to really complex and engaging storylines that add new layers to the Dragon Ball lore.
One idea could be that after the defeat of a powerful enemy, Goku accidentally ends up in a parallel dimension where he meets multiple female characters from different eras of Dragon Ball. They all develop feelings for him due to his heroic nature. Another plot could be that Vegeta, in an attempt to outdo Goku, gets involved in a situation where he has a harem of his own, but he's constantly struggling to understand their emotions as he's so focused on training. A third idea is that a new female Saiyan arrives on Earth and she has a special power that attracts many of the male Dragon Ball characters, leading to a complex web of relationships and a harem - like situation.
One idea could be that the reincarnated character has knowledge of all the Dragon Ball series in their past life. So they start training in a unique way early on, like combining different fighting styles from different sagas. For example, they might mix Goku's Kaioken with Vegeta's Galick Gun at a very young age, which surprises everyone in the Dragon Ball world.
Another interesting plot could be a what - if scenario where Yamoshi teams up with the modern Z - fighters. This would bring a whole new dynamic as he has his own set of skills and values from his era.