From joystiq.com:
New details about Deus Ex 3 have been revealed in a preview article written on the Czech website Hratelne.cz. According to translations found on the Eidos forums, the game will feature protagonist Adam Jensen and is set in a world where cybernetics companies hold more sway than world governments. Those who can afford [...]

From gamereactor.eu (via kotaku.com):
 
The first screens and info from Deus Ex 3 have been released. It is under development at the new Eidos Montreal studios.
The game takes place in the year 2027 and the main character Adam Jensen is a security guard at a biotech company called Sarif. One day the offices are stormed [...]