One idea could be Gohan in his Super Saiyan 4 form facing a new, powerful enemy from another dimension. He could struggle at first to control the raw power of this form while also trying to protect his friends and family. Maybe this new enemy has the ability to nullify the Saiyan's energy attacks, forcing Gohan to rely more on his martial arts skills that he learned from Piccolo.
In a fanfiction, Gohan as Super Saiyan 3 could be involved in a time - travel adventure. He travels back to a crucial point in Dragon Ball Z history and has to use his Super Saiyan 3 powers to change certain events. This could lead to a whole new timeline where things are different. For example, he might be able to prevent the destruction of Planet Namek or save some characters who originally died.
Family relationships are also a big theme. His relationship with Videl, his daughter Pan, and of course his father Goku. Fanfictions often explore how Gohan balances his family life with his role as a Z - Fighter. For example, there could be stories about how he teaches Pan about her Saiyan heritage while also dealing with threats to the Earth. There are also stories that focus on his relationship with Goku, like how Gohan continues to be inspired by his father or how they train together to face a new powerful enemy.
One idea could be Gohan struggling to control the new power of the Super Saiyan God. He might accidentally cause some destruction while training and then have to deal with the guilt and the fear of his power getting out of control.
In many Dragon Ball Super fanfictions, Gohan's character development can take various directions. Some fanfictions might focus on his return to his Saiyan warrior roots. For example, he could start training intensively again after realizing the threat to his family and the universe. This would involve him pushing his limits in combat and rediscovering his latent powers.
I'm not entirely sure as I haven't read it fully, but generally, it might involve new heroes and villains in the Dragon Ball universe, with epic battles and power - ups for the characters.
It would likely include epic battles. Gohan in his Super Saiyan 4 form would engage in intense combat against strong adversaries. His power would be on full display, with energy blasts and super - fast movements.
One possible plotline could be Gohan exploring the new powers of Super Saiyan 5. He might face a new, extremely powerful enemy that even the other Z - fighters can't handle. For example, a powerful alien from a far - off galaxy who has come to Earth to claim it as his own. Gohan, in his Super Saiyan 5 form, would have to learn to control his power quickly to defend his home. Another plotline could involve Gohan training others to reach the Super Saiyan 5 level. He could start a new school or training regime on Earth to prepare the younger generation for future threats.
One popular plot is Gohan's power - up journey. Fans love to see him reach new levels of strength. This could be through a new form or by unlocking hidden potential. For instance, he might discover a way to combine his human and Saiyan genetics in a unique way to gain a power boost.