As Henry Cavill told Fandom, he sees a lot of potential in Brainiac, and since we’ve already met Jesse Eisenberg’s Lex Luthor and there’s no guarantee yet Superman will cross paths with Darkseid in the DCEU, Brainiac is arguably the next best villainous candidate to bring in.
Like Batman and The Flash, Superman boasts one of the largest rogues gallery in comic book history, and Brainiac ranks as one of his greatest enemies.
It would have been difficult to properly adapt Brainiac in the days of the Christopher Reeve Superman movies, but with today’s moviemaking technology, the timing is finally right to bring him to life on the big screen.
Whether he’s portrayed as a denizen of Colu, a rogue Kryptonian AI or something in between, the technologically advanced antagonist has not just given Superman troubles countless times, but he’s also graduated to being a threat to the entire DC universe, much like Darkseid.