NO! It's a special variant cover for issue #15 of the GAME OF THRONES comic, available only (or so we are told) at the San Diego Comicon, as a comicon exclusive.
This special alternate cover was requested and commissioned by our friends at Mile High Comics, in cooperation with Dynamite Comics. It is my understanding that it will be available only at the Mile High booth. (Though of course the same issue, with the regular cover, will be available from numerous dealers at the con).
The artist is Fritz Casa.
((Before you all start posting messages and sending emails... yes, we're well aware that the scene depicted does not actually occur in this issue. In fact, Dany's dragons have not even hatched yet in the comics, that's a good ten issues in the future. And even when they do hatch, the dragons won't be that big until, oh, STORM OF SWORDS or so. [A couple of other things here are also bigger than I'd envisioned]. No need to point all this out. My editors and I pointed it all out already to Dynamite and Mile High, but this is the cover they wanted. Artistic License, and all. The Mike S. Miller cover, with a completely different scene, will also continue to be available.))
I am told that Dynamite printed 1500 copies of these for Mile High... but with 150,000 fans at comicon, there's no telling how long they will last. So if you want to snag one, I'd advise you to hit the Mile High booth early.
(Yes, that's Froggy. No, there's no casting clue in this post. I just missed the lil' guy. Hiya, kids, hiya, hiya.