I stumbled across this on Sean Murphy's deviant art journal:
"The other reason why I'm feeling so much anxiety is that I've had to turn down a ton of good work in order to do PRJ. Here's a quick list of what I've turned down:
-another Grant Morrison book
-a Mark Millar book
-a James Robinson book
-Batman and Detective Comics (about 7 times)
-a Dr. Strange mini series
-a Spider Man 2099 one shot
-work with Todd McFarlane
-an "Assassins Creed" redesign with Ubisoft
-3 European publishers"
I wondered why he wasn't among the New 52 artists, and apparently, they wanted him to, but he opted to do a creator-owned project (good for him!)
That said, I would have loved to see him on Snyder's Batman or Morrison's Batman Inc. (Or maybe even something for Multiversity?!)
Also, Hellboy. Oh god, I would have loved that.