It was announced for PlayStation 3 in 2009.
New images and art of Agent, a game Rockstar supposedly be launched on PlayStation 3, have appeared on the Internet by an artist who worked on the project during 2009 and 2010.
Darren Charles has said that the team was reassigned to Grand Theft Auto V and is not sure if Agent will be published sometime. If so their appearance would be very different from these filtered images.
Agent, which was in development at Rockstar North is ambientaba in the darkest time of espionage in the 70 Officially it never showed anything but the logo, although I must say that Rockstar has not publicly announced its cancellation and registration the mark is renewed every year.