At this point, it still isn't clear exactly what DC Studios' co-heads James Gunn and Peter Safran have planned, or how hard a reboot their new films will be. Henry Cavill's "return" to the part of Superman was short-lived, "Wonder Woman 3" has been canceled (though Gal Gadot hasn't exited yet), and it doesn't look like the Rock's take on Black Adam is included in their plans.
At the same time, it seems unlikely that Gunn would also dump his personal projects, "The Suicide Squad" and...