The article says more than I ever could by giving insight on what the video could mean (the video is provided in a link within the link). Also, I though that maybe the brains at Bungie could form a Think Tank and try to solve it. Some theories are:
Fallout 4 (this may have been denied by Bethesda)
Wolfenstein
Doom 4
Edit: [url=https://vine.co/v/bFldAQgTIr6]Another one that was not included in the article.[/url]
Edit 2: [url=http://projectzwei.net/index.html]Could be Project Zwei.[/url] Some of the concept art matches the hints.
Edit 3: [url=https://vine.co/v/bUqveJ2uFeZ]Final video and reveal tomorrow.[/url] It's either going to be Project Zwei or Wolfenstein. I'm thinking Wolfenstein because of the 30's-40's feel and the thing that looks like a wolf.
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Watching those on repeat has creeped me out a bit. Especially the second one with the guy in the background. Someone in the comments of the article was technically put out by the publisher, not the developer, so it might not even be a game they're making.