Don't Starve and Mark of the Ninja, has just announced Incognita, a "turn-based tactical espionage" game.
Beyond a name and a genre declaration, there isn't much on Incognita at the moment. However, if you click on the bottom right of its splash page, it does take agents to another page for deciphering. Klei has a forum post up so folks can "speculate, discuss and communicate with [Klei]."
So, this is a game in deep cover? Gotcha.