So you've completed Adam Jensen's journey, unraveled the conspiracy, augmented yourself until you couldn't recognize yourself. It's time to head back to the space between the second and last third of the game and find out what happened on Adam's voyage to Panchea.
Thanks to Eidos for letting us know what to expect. Remember that the developers have already stated that Adam will have to fight without his augmentations at one point and even face-off with a more open-ended boss fight. Deus Ex: Human Revolution's DLC "The Missing Link" will release later this month on Xbox 360, PS3, and PC.