Grand Theft Auto 5 is joyriding towards a "spring 2013" release, according to posters leaked by UK retailer GAME. While no official announcement has been made, IGN reports GAME Brighton tweeted this morning "Pre-order now!!!!!!! #GTA5" along with the below image.
The tweet has since been deleted, although IGN has a screenshot. We have a partial screenshot taken from GAME Brighton's Facebook page which backs this up, with the tweet likely being automated to the outlet's profile (again the FB message is now deleted):
Across the weekend, a Polish fansite put up alleged posters for the game, also indicating a Spring 2013 release. To reiterate, Rockstar has not made any official announcement about the game's release date.