[quote user="Lord Dirt"]Yes, it comes with Adam Fenix character skin and the 5 infected omen weapon skins[/quote]
Meaning that it doesn't come with all the character & weapon skins, then, and the answer is "no". The OP can look around and see what doesn't come with the console: characters include Griffin from Facebook and pre-order bonuses from
various retailers, and weapon skins from various unlocks (the Gears 3 beta, previous Gears games' achievements, an Xbox Live membership card) that often overlap with each other or in-game unlocks.
It's a reasonable question since there are often game editions that include "everything", but for now there's nothing like that with Gears 3.