A fanfic could focus on the creation of a new, unique transformation for one of the characters. Maybe Vegeta discovers a transformation that combines the power of Super Saiyan Blue with the energy of the Dragon Balls themselves, giving him an edge in the battles of Dragon Ball Heroes.
Another plot could revolve around the villains of Dragon Ball Heroes taking over the regular Dragon Ball universe. The Z - fighters then have to adapt to the new rules and powers in the Heroes world in order to take back their own universe. They might have to learn new techniques and make unexpected alliances.
One idea could be a time - traveling adventure where the heroes from different eras of Dragon Ball come together to face a new, powerful enemy in the Heroes universe. For example, Goku from the Saiyan Saga teams up with Goku Ultra Instinct from a later time.
A fanfiction could also focus on the backstories of the less - explored characters in Dragon Ball Heroes. For instance, you could write about the origin of a particular alien race that is only briefly mentioned in the game. Explore their culture, their reasons for getting involved in the battles, and how they interact with the main characters. This would add more depth to the overall Dragon Ball Heroes universe.
Perhaps a plot where the villains in the God Mission manage to steal the power of the Super Saiyan God forms and the Z - fighters have to find a new way to regain their strength and defeat them. This could involve seeking help from ancient Kais or exploring new planets for power - enhancing items.
A third idea is to focus on a tournament among the new generation. But instead of just physical combat, it also includes challenges related to knowledge of the Dragon Balls' history and power. This would not only test their fighting abilities but also their understanding of their own heritage.
One idea could be a fanfic where Goku discovers a new form that is a combination of Ultra Instinct and Super Saiyan God. This form gives him unique abilities and a new look. Another idea is to have Vegeta go on a solo adventure to a new planet filled with powerful foes that force him to develop a new fighting style. Maybe also a story where the Z - fighters have to team up with their old enemies like Frieza to fight a greater threat from another dimension.
One idea could be exploring an alternate timeline where Goku never hit his head as a child. He might grow up as a ruthless Saiyan warrior, changing the entire dynamic of the Dragon Ball universe.
Another plot could involve Towa traveling to different timelines not just to cause chaos, but to find a way to bring back a lost loved one. Maybe she has a family member from her own race who was killed in a long - ago battle, and she believes that by manipulating the Dragon Ball timelines, she can resurrect them. Along the way, she has to deal with the Z - Fighters who are trying to stop her time - meddling.
One idea could be that the heroes from Dragon Ball Heroes face off against an unexpected villain from the world of x note in a tournament setting. The battles could involve unique power-ups and strategies.
One idea could be a new villain from an unknown dimension arriving in the Dragon Ball universe. This villain has a unique power that nullifies ki attacks, forcing the Z fighters to rely on their martial arts skills alone.
One idea could be that Naruto and Goku meet during a interdimensional rift. They decide to have a friendly spar, with Naruto using his shadow clones and Rasengan while Goku goes Super Saiyan. Another could be that the Akatsuki are after the Dragon Balls for some reason, and the Z - fighters team up with the ninja of Konoha to stop them.
One idea could be exploring a dimension where the Saiyans never lost their planet and became a peaceful, advanced civilization. Another could be a dimension where the Z - fighters have to face off against versions of themselves that are corrupted by dark magic. Or perhaps a dimension where the Dragon Balls have different wishes and limitations.