One interesting concept could be a female Goku having a different approach to training. Maybe she focuses more on finesse and speed rather than brute strength like the male Goku. She could also have a different relationship with the other Z - fighters. For example, her interactions with Vegeta might be less combative and more of a friendly rivalry.
In some fanfictions, a female Goku might have unique power - ups. Instead of going Super Saiyan in the traditional way, she could tap into a more feminine - energy - based transformation. This could lead to new and exciting battles and storylines. Also, her backstory could be altered. Perhaps she was raised in a different way on Planet Vegeta, which influenced her personality and fighting style.
Well, in Dragon Ball Z Multiverse Fanfiction, there are often concepts like different Saiyan clans. Some fanfictions explore the idea that there are more Saiyan clans out there with unique powers. Also, the idea of time - traveling in a different way than in the official story. Instead of just using the time machine, characters might use some sort of magic or new technology to travel through time and change the course of events. And of course, there can be new forms of energy or power - ups that are exclusive to these fan - made stories.
A fanfiction might explore the idea of Bardock seeing Goku's life through a time - space rift. He witnesses all of Goku's battles and the friends he makes. Bardock is filled with pride but also realizes that Goku has a different path than the traditional Saiyan way. This makes him question the Saiyan culture he once knew. Meanwhile, Goku starts to have strange dreams about his father, which leads him to search for more about his Saiyan heritage.
A possible plotline could be that Bardock, in the afterlife, is able to communicate with Goku in his dreams. He warns Goku about an upcoming threat that is even more powerful than the villains he has faced so far. Goku then starts a new training regime in preparation for this threat, and along the way, he discovers more about his father's past and the true potential of the Saiyan race.
One idea could be that Female Goku and Vegeta have to team up to save the universe from a new and powerful enemy. They start off not getting along well, like in the original series, but as they face challenges together, they develop a mutual respect and friendship.
Often, fanfictions in this area explore the concept of the gods' true nature more deeply. In the original Battle of Gods, we only got a glimpse. But in fanfiction, authors might expand on what it really means to be a god in the Dragon Ball Z universe. They could explore things like how the gods' power is maintained, their relationships with each other beyond what we saw in the movie, and how mortals can truly interact with them on a deeper level.
Well, one interesting concept could be unique character designs for the self - inserted original characters. They might have special powers or abilities that are different from the regular Dragon Ball Z characters.
Another idea is a male OC who is a master of an ancient martial art that has been lost in the Dragon Ball Z universe. He could use this martial art to defeat enemies in unexpected ways. His fighting style might focus on using the opponent's energy against them, rather than relying solely on his own power.
One interesting concept could be Cell crossing over into an alternate universe where the Z - fighters have different power levels or abilities. For example, he might find himself in a world where Goku never went Super Saiyan. Another concept could be Cell teaming up with a former enemy, like Frieza, which would create a really unique and powerful alliance. Also, a crossover could involve Cell getting new forms or upgrades from some other powerful being in the Dragon Ball multiverse.
One interesting concept could be alternate timelines. In fanfiction, writers might explore what would happen if certain events in Dragon Ball Z took place in the Twilight Zone - like a world where Goku never arrived on Earth and how that would change the entire Dragon Ball Z universe's power dynamics and relationships. Another concept could be character crossovers within the Twilight Zone setting. For example, how would the Z - fighters interact with Twilight Zone - like entities or characters from other shows that are brought into this strange new setting.
One interesting concept could be experiencing the intense battles in virtual reality. Imagine feeling the power of a Kamehameha wave up close. Another could be exploring the different planets in the Dragon Ball Z universe through VR, like Namek. And there might be fanfictions where characters interact in new ways in the VR world, such as training sessions that are more immersive than ever.