DLC coming soon
It's called The Missing Link. The debut trailer is on Gametrailers. It features Adam Jensen sat in a chair, shirtless and bloodied. A man gives a narration then a woman starts speaking. Several images flash on the screen of a helicopter flying to a facility in the middle of the ocean and a woman punching Jensen. He then gives a narration about certain people who he couldn't save before ending with a woman crying and saying she just wants to go home.
Sic Parvis Magna 'Greatness from small beginnings'