One popular theme is alternate timelines. Writers like to explore what would happen if certain events in GT were changed. For example, if Goku didn't turn into a child in the beginning of GT. It gives a whole new perspective to the story.
Vegeta is also highly popular. Writers often like to write about his pride as a Saiyan and how he overcomes his own ego to become a better fighter and a better person. His relationship with Bulma and his rivalry - turned - friendship with Goku are rich areas to explore in fanfiction.
The theme of redemption can also be found. There could be villains from either series who get a chance at redemption in the crossover fanfiction. For instance, a GT villain might be influenced by the more positive energy in Dragon Ball Super and start to change their ways. Also, the search for the Dragon Balls, which is a central part of both series, could be a unifying theme with new twists in the fanfiction.
Goku is often still very popular in these rewrite fanfictions. His status as the main protagonist in the original makes him a central figure that many writers like to explore further. Vegeta is also quite popular as his complex personality and his relationship with Goku can be developed in interesting ways.
One great Dragon Ball GT Super fanfiction is 'The Forgotten Saiyan'. It has an interesting plot where a Saiyan from a long - lost lineage emerges during the GT era. The story has well - written action scenes and character development.
Dragon Ball Super vs GT in fanfiction can lead to some really interesting character developments. The different timelines and power systems in both series offer a lot of room for creativity. In some fanfictions, the younger characters from Super might meet their older counterparts from GT. This can create a contrast in personalities and fighting styles. For example, Trunks in Super is more used to the modern power-ups and technology, while Trunks in GT has a more 'old - school' approach. Fanfic authors often use these differences to create engaging stories that explore not only the battles between the two series but also the underlying themes and character growth.
Well, in Dragon Ball GT Cross Super fanfiction, there could be some really interesting crossovers. Maybe it combines the unique elements of Dragon Ball GT, like the transformation into a Golden Great Ape, with the power - ups and new characters in Dragon Ball Super. It might explore how the characters from both series interact and what kind of new storylines can be created from that.
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.
Power - ups are a common theme. Since both Naruto and Dragon Ball GT have characters that constantly grow in power, fanfictions often explore new power - ups for the characters. For example, a Naruto character might gain the ability to use Ki like in Dragon Ball GT.
One popular theme is the exploration of Broly's character development in relation to Chirai. Maybe showing how their relationship could change Broly from his usually berserk state. Another theme could be adventure, with them teaming up to face new threats in the Dragon Ball universe.
Goku would be really interesting. He's the main character in both series in a way. Seeing how his experiences in Super have changed him and how he would react to the situations in GT would be cool. He might use his Ultra Instinct against the powerful foes from GT.