Previously scheduled for Fall 2012, the expected Tomb Raider 2012 was delayed to the first quarter of 2013! Darrell Gallagher, Head of Studio at Crystal Dynamics, announced today (May 14th, 2012): "Our priority now is to make sure we fully deliver the very highest quality game. In order to do this, we have decided to move the game’s release date by a few months, from Fall 2012 to the first quarter of 2013.".
The latest build of the game will be showcased at E3 2012.
Source:Gamershell.com