Henry Cavill's transformation into Kingdom Come Superman, thanks to impressive fan art, portrays the character as an older, more jaded hero rejected by humanity in Alex Ross' alternate story. The Snyderverse, originally planned to end in Justice League Part 3, would have followed the Knightmare timeline in Justice League 2, where Flash uses the cosmic treadmill to jump back at the correct time, leading to an alternate timeline where Superman never succumbs to the anti-life equation and Batman sacrifices himself for Lois. In this alternate timeline, Superman would lead Earth's forces in defeating Darkseid, marking the end of the Snyderverse. However, this could have led to its own Flashpoint storyline set up from Batman v Superman, featuring Jeffrey Dean Morgan as Flashpoint Batman and Lauren Cohan as Joker. There was also the potential for an Elseworld story that perfectly sets up the events of Kingdom Come with Cavill's Superman or even one that exists as a diverged timeline.
The potential for a Kingdom Come adaptation featuring Henry Cavill's older Superman has been explored by Skull101ify on Instagram. In contrast to Alex Ross' vision, the artist envisions a unique version of the character, with the black suit from Zack Snyder's Justice League serving as an alteration of the BVS suit, which in turn is an alteration of the MOS suit. The edit not only depicts Cavill as an older version of the character but also utilizes a specific scene from BVS that mirrors the themes of Ross' Superman existing within a democracy, as seen in Peace on Earth and Kingdom Come. While Brandon Routh wore a variation of the Ross suit in Crisis on Infinite Earths, a story featuring Cavill's future Superman would have fit perfectly within the themes and tone explored in the Snyderverse, particularly if it involved Bruce Wayne's death and the emergence of Clark and Lois' son as the new Batman.
Continuing with a younger version of the characters may not be as logical as carrying on with Cavill's Superman, who could potentially star in a future Kingdom Come adaptation. This is because the character development of Superman in the Snyderverse could have laid the foundation for him to be led towards that storyline. James Gunn appeared to have hinted at Kingdom Come being part of his 10-year plan for the DCU.