The 'Rathalos' armour skin will become available for Xbox 360 and PS3 May 11th, in both Europe and the US. Lost Planet 2 is out this week.
Other special skins have been revealed for Lost Planet 2 like Resident Evil's Albert Wesker or Dead Rising's Frank West. The greatest news about this 'Rathalos' DLC is that is out for launch and is totally free for both Xbox 360 and PS3.
Source: PlayStation LifeStyle