The Justice League storyboards posted by Screen Rant show that the latest DCEU movie would have revisited this future, as we would have seen Darkseid successfully performing The Unity with the Mother Boxes, thus terraforming Earth to make it resemble Apokolips.
Batman and the other Justice Leaguers established Wayne Manor as this universe’s Hall of Justice at the end of Justice League, but even it couldn’t withstand devastation of that magnitude.
Aside from seeing that Darkseid did indeed have a role to play in Justice League back when director Zack Snyder was still overseeing it, another particularly interesting element of these drawings is that the Hall of Justice archway is seen buried in the rubble following Earth’s transformation.
For those who need a refresher, during Batman v Superman: Dawn of Justice when Bruce Wayne fell asleep while the Batcomputer was decrypting Lex Luthor’s files, he dreamed of an Apokoliptic future where Earth had been taken over by Darkseid’s forces and Superman was ruling with an iron fist.