There's an inherent danger for announcing sequel or spin-off plans before the first film is even out there (or has been made). But when you have Dwayne Johnson playing a character, we can forgive Warner Bros. and DC for tempting fate and risking being seen in more disarray by putting the cart before the horse. The studio is now splitting its planned Shazam! movie into two, with one focusing on Johnson's anti-hero character Black Adam.
Shazam focuses on Billy Batson, who can become the hero known as Captain Marvel (no, not Brie Larson) by saying the word, “Shazam!” which grants him the powers of six mythological gods.
Johnson’s character has long been the nemesis for the hero, but in recent comics, he’s been on a path to change his nature and make amends for his past. And that would seem to be the angle here, with Johnson looking to find the fun in the DC universe.
So DC's team, including boss Geoff Johns apparently decided that rather than consigning Black Adam to mere villain character status, they would let him breathe in a film of his own. Well, you need to create room for The Rock. Especially since he's been loosely attached to play the role since 2008 and was officially confirmed in 2014.
When either of the movies might hit is anyone's guess, especially given Johnson's busy schedule. But it certainly sounds like he's looking to power another potential franchise...