Oh, that Bethesda. I say I'm going to do my best to avoid covering teasers and then, right after leading up to The Evil Within's announcement with a bunch of Vine posts, the company has organized some sort of promotional campaign with GameSpot. One I'm unable to resist.
It all started with a tweet, as these things tend to. The publication has full-size versions of the three spliced-together images, viewable here, here, and here. 1960, eh? For the record, Bethesda's Pete Hines has graciously steered us away from the notion that this is a Bethesda Game Studios project; the Fallout 3 and Elder Scrolls developer is not involved.
The imagery here doesn't appear remotely identifiable to me, but I figure if I keep guessing that Bethesda's teasers are for Wolfenstein, eventually, I'm bound to be correct.