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.
Another aspect of his character development in fanfiction could be his role in the scientific community. Gohan is smart, and fanfictions could expand on his scientific research. He might use his knowledge to develop new techniques or even find ways to enhance the powers of his friends and family. This could also lead to him being in a unique position to deal with threats that require both scientific and martial arts knowledge.
Goku's understanding of different universes and races could be deepened in fanfiction. Since Dragon Ball Super introduced the multiverse concept, fanfiction could explore how Goku interacts with and learns from beings from other universes, making him more worldly and less naive in some ways.
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.
Let him experience growth. Have him face challenges that force him to change his perspective. Maybe he meets a character who is so pure - hearted and kind that it makes him question his own values. Through interactions like this, he can gradually transform from a one - dimensional villain to a multi - faceted character with his own internal struggles and growth in the Dragon Ball Super fanfiction.
To develop Cooler further, he could be given a redemption arc. Maybe he starts off as a villain but gradually realizes the error of his ways. He could befriend some of the younger Z - fighters who look up to him despite his past. This would force him to be a better role model and in the process, he would change and become a more complex and interesting character.
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.
They could go through a period of misunderstanding. Maybe Gohan makes a decision about his future that Chichi doesn't initially understand. Through communication and some trials, they grow closer as they learn more about each other's perspectives.
Gohan could be developed by showing more of his academic side in fanfiction. He's smart, and this could be explored further. For example, he could use his intelligence to create new techniques or solve problems that the Z - fighters face. Videl, on the other hand, could be developed by showing her growth as a martial artist outside of just learning from Gohan. She could travel to different dojos and learn from other masters, which would make her an even more formidable fighter in the fanfiction.
Gohan could become more of a leader. With the power of Super Saiyan 5, he would be one of the most powerful beings in the universe. Other Z - fighters might look to him for guidance and leadership. This could bring out a more assertive side of his personality. He would need to step up and make tough decisions for the greater good, which would shape his personality in a more authoritative way.