So no, I'm not part of DC's Rebirth, but I have sold my soul and become a corporate whore. I've contributed a variant cover for Titan's Heroes: Godsend #4 (out in June) which is listed in Diamond's April Previews catalogue (out today I believe), so if you want a copy you may need to preorder it from your comics retailer.
Here's the official blurb:
Heroes: Godsend continues to explore the origins of Farah Nazan from the Heroes Reborn mini-series! Farah’s life becomes more complicated thanks to a huge hulk of an EVO named Mr Vance, a nasty young businesswoman called Philomena, and a bomb. Plus, could romance be in the air for Farah? (STL006050)
MARTINEZ COVER—32pgs, FC (4 of 5) $3.99
MILLIDGE COVER—32pgs, FC $3.99