Let me get this right. This is a teaser trailer for a preview of a comic book. I think that's correct.
A prelude Supercrooks story by Mark Millar (and, by absentia, not Leinil Yu) will appear in March's copy of CLiNT magazine and, apparently, won't appear anywhere else.
Though I'll bet you it will appear in the eventual trade paperback.
Just not in the Marvel comic. It's one way to get some more original material in the magazine. Anyway, here is a mock up of the piece being pasted together, or something.