He becomes more resourceful. In his own time, he's used to a certain set of circumstances. But during time travel, he has to adapt quickly to new situations and find ways to use the resources available in the past. For example, he might have to figure out how to use different senzu beans or power - up techniques that are new to him.
His understanding of the concept of time and causality deepens. He realizes that his actions in the past can have far - reaching consequences in his future. This makes him more cautious and calculated in his decisions. For example, he might hesitate to use a certain powerful attack in the past because he's worried about how it could affect the timeline. He also starts to see different versions of people he knows, which broadens his perspective on their characters and his relationships with them.
One possible plot could be Future Trunks traveling back in time to prevent a new threat that he discovers in his own time. For example, a powerful and unknown enemy is about to emerge in his future, and he goes back to enlist the help of Goku and the others before it's too late. Another plot could involve Trunks accidentally changing something in the past that has unforeseen consequences in his future, like messing with the timeline of a certain character's power - up, which then leads to a whole new set of challenges when he returns to his own time.
Cell could still be a great antagonist. Imagine a scenario where in the fanfiction, Cell follows Future Trunks through time. He then starts to absorb different beings in the new timeline in a more devious way than in the original story.
One idea could be Future Trunks bringing back a technology from the future that changes the course of the present timeline's battles. For example, a more advanced scouter that can detect hidden power levels more accurately.
Their relationship could also become more of a mentor - mentee type situation at times. If they travel to a time when one of them has more knowledge about what's going on, say Trunks if they go to a time related to his future knowledge, he could be like a mentor to Goten, guiding him through the situation. But then in other situations, Goten's natural fighting instincts might lead and Trunks would learn from him. This back - and - forth would change their relationship in a dynamic way.
Trunks' time travel in fanfiction is a great way to expand on the original story. For example, some fanfictions might explore what would happen if Trunks made different choices during his time travels. Maybe he could prevent certain tragedies or cause new ones. It gives a lot of creative freedom to the writers to come up with unique and exciting plot twists.
A lot of Trunks' time travel fanfiction focuses on fixing the past. He has the power to change things that went wrong in the original timeline. It's really cool to see how writers use this concept to create alternate versions of the Dragon Ball story.
Give her a unique personality. Since she's from the future, she could be more tech - savvy or have a different view of the world compared to the present - day Avengers. For instance, she might be used to more advanced technology and be frustrated with the limitations of the past.
To develop their relationship, you could focus on their differences. Trunks is more rational and calculated in his actions, while Broly is more instinct - driven. By having them learn from each other, their relationship can grow. Maybe Trunks helps Broly control his anger by teaching him meditation techniques, and in return, Broly shows Trunks how to tap into raw power. Also, shared experiences like traveling to new places or facing an ancient evil can bring them closer. As they rely on each other more and more, their relationship evolves from mere acquaintances to friends or even something more.
It could lead to a completely different story arc. Maybe he'd have a greater impact on the events and change the outcome of battles.
During time travel, their relationship might develop as they rely on each other in unfamiliar situations. For example, if they end up in a dangerous past era, Sai's combat skills and Sakura's medical ninjutsu would be crucial for their survival. This mutual dependence can strengthen their bond.