What surprise is PlayStation bringing to gamescom 2014?

"#PlayStationGC" is the only text attached to this mysterious new Sony teaser.

Sony uploaded the teaser video below with no description beyond the hashtag #PlayStationGC. I don't think we're making a significant leap of logic in assuming this teaser is for a gamescom 2014 reveal, announce or showcase.

But in the realms of speculation: what game could this be for? It could, of course, be something we know nothing about, but we have a couple of good contenders. Supermassive Games' almost forgotten horror title Until Dawn is overdue a showing. We know Bloodborne's going to on show in a big way. Capcom's just announced a Resident Evil remake, which certainly fits the aesthetics.

What's your best guess? Gamescom kicks off on August 13, so we don't have too long to wait now. Oh gosh we have so much to do before then ahhhhhh.