Cyborg Superman will be featured in Action Comics #23.1 for Villains Month in September for DC Comics and is currently appearing in issues of Supergirl, with #23 on sale today.
In an exclusive interview with Cosmic Book News Managing Editor Byron Brewer, writer Michael Alan Nelson explained that in the New 52, the Cyborg Superman is not Hank Henshaw, but Supergirl's father, Zor-El!
And the biggest difference in the New-52 character, and one that I hope is common knowledge by the time this comes out, is that Cyborg Superman is no longer Hank Henshaw. He's actually Zor-El, Kara's father. Readers will have to wait until they read the Villains Month issue to learn just how he became Cyborg Superman, but that is the single biggest difference between the new and pre-52 character.