All that strange
The description for where this extra mission takes place is spoiler-free, while at the same time making it pretty clear where it occurs in-game (it’s that bit where you’re on a freighter for a few days).
Apparently, Adam Jensen was actually being tortured by Belltower during that trip, and will lose his augmentation abilities (this is presumably a handy way of letting you play the mission without having to reach that exact spot in the game).
After escaping, Jensen gets to mess around on the ship and uncover another layer of conspiracy to add to the previous fifty seven layers of conspiracy.
New characters and environments are promised, along with the chance to rebuild Adam’s augmentation set-up from scratch.
‘Missing Link’ is due in October. No price has been mentioned as yet.