You'll be able to pick up Aliens Vs Predator in three flavours come Feb 18. First, there is the Standard edition: just the game in a DVD case for $99.95 on 360/PS3 and $89.95 on PC.
Second, there is the Survivor edition: game, steelbook case and four exclusive multiplayer maps for $119.95 on 360/PS3 and $109.95 on PC.
Third, there is the Hunter edition (PC version pictured above): game, all the content from the Survivor edition, plus "prestige packaging" (which I think means the oversized box everything fits into), a replica mouldable facehugger, a Weyland sleeve badge (ie. a patch to sew onto your jacket or shirt) and a 3D lenticular card (which seems to depict an alien and predator cornering a marine). All that comes to $139.95 on 360/PS3 and $129.95 on PC.
No mention of any retail exclusivity, just that it will be available from "all good gaming specialist stores."