Well, one key event is Goku's early battles against various foes. He faces off against enemies like Raditz. Another important part is his training and growth in power during this part of the story.
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.
One aspect of Dragon Ball Z Pan Super Saiyan fanfiction could be exploring new power - ups for Pan. Maybe she discovers a unique way to achieve the Super Saiyan form that's different from the traditional methods. It could involve her training in a secret place or having a special encounter that unlocks this power.
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.
One great fanfic idea could be a female Super Saiyan from a different universe arriving in the Dragon Ball Z universe. She could initially be seen as a threat but then team up with Goku and the others to fight a new, powerful enemy. Maybe she has unique abilities that are different from the male Super Saiyans, like a more energy - efficient transformation or a special healing ability while in Super Saiyan form.
One way is to make Goku face moral dilemmas in his Super Saiyan God form. For example, he might have to decide between saving a planet full of innocent people or obtaining a power - up that could help him in a greater battle later. This would force him to think about his values and grow as a character.
One idea could be Goku exploring new universes in his Super Saiyan God form and facing off against unknown foes with unique powers. Maybe he discovers a new type of ki energy that only exists in these universes and has to learn to control it quickly to save his friends.
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.
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.