Trunks is the son of Vegeta and Bulma, a unique blend of a Saiyan warrior and a human. In the Dragon Ball series, there are two versions of Trunks. Although they share similar traits, Trunks and Future Trunks exhibit significant differences in personality and upbringing. Future Trunks grew up in a dystopian world where Androids had nearly wiped out humanity, leading to a much more serious and battle-hardened demeanor.

However, Future Trunks had the opportunity to learn from both his father and Goku, training to become a powerful warrior capable of fighting against the Androids. Eventually, Future Trunks traveled back in time to warn Goku and the Z Fighters about the impending threat posed by the Androids in his future, leading to a tumultuous conclusion that involved the Z Fighters facing grave dangers.
Future Trunks also played a crucial role in the quest for the Dragon Balls in Dragon Ball GT, teaming up with Goku and Pan. However, in this series, Future Trunks’ potential was not fully developed, relegating him to a supporting character role.
Interestingly, fans of Dragon Ball often enjoy creating alternate versions of their favorite characters or imagining scenarios that could never happen. Recently, a fan decided to recreate Future Trunks’ appearance when transformed into Super Saiyan 4 in Dragon Ball GT.

The user with the username @Salvamokoto left his followers on Instagram astonished by illustrating what Future Trunks might look like in the Super Saiyan 4 form. After this image was shared on social media, many fans expressed their surprise and admiration for the artwork.
In conclusion, fans will likely never see Future Trunks in the Super Saiyan 4 form, as only Goku and Vegeta attained that level in the series. Nonetheless, artist @Salvamokoto has creatively visualized this transformation, sparking interest and discussion among the community.