just checked the game website, link below
http://www.game.co.uk/Wii/Action/FirstPersonShooter/~r339367/The-Conduit-Special-Edition/
and the gamestation website, link below
http://www.gamestation.co.uk/Wii/Action/FirstPersonShooter/~r413505/TheConduitSpecialEdition/
these shows a release date of june 12th in the uk