It seems Rockstar is finally set to pull back the veil on Grand Theft Auto 5, with a demo ready to be revealed to the outside world.The developer is showing the game to press today, as confirmed by Game Informer editor-in-chief Andy McNamara, who posted on Twitter moments ago: "In NYC, about to check out December's cover game #GTAV", with an accompanying picture of Rockstar's logo.So, GTA 5 will adorn the cover of GI's December issue, due out next month, and as Kotaku points out, it often reveals first details on its cover games shortly ahead of the magazine release.So those of you tired of the slow drip-feed of info we've gotten so far will likely get your fill of new details next month if not sooner.As reported earlier today, GameStop UK is listing a Grand Theft Auto 5 release date of Friday March 1, 2013. Probably placeholder, but March has been previously rumored.