Here's the solicit from Marvel:
http://marvel.com/catalog/?id=11201
Two appearances, both reprinted from previous material:
In the section about Wolverine: Origins, we see a floating torso of Wild Child, reprinted from issue #33.
In the section about First Class, we see the panel containing the memory shard of Mac reprinted from Weapon X: First Class #1.
So no new material, sorry folks, and I haven't read it yet, just flipped through my copy and saw these images.
Love,
rplass