Gears of War 2 DLC surprise?

We already know there’s some Gears of War 2 DLC on the way to please all the chainsawers out there, namely a map pack that’s been dated for this Saturday, but there’s something else that’s been discovered on an Asian product page. Something that’s slated for April. Something titled Gears of War 2: Dark Corners.

More multiplayer maps that for some strange reason have been kept under wraps? Or, perhaps more excitingly, an add-on to further explore the single-player story? This is surely related to Geoff Keighley’s little (is there any other kind?) twitter about a Gears 2 level announcement, and perhaps also to this tweet from OXM who promises that Microsoft has “some very cool stuff” to show during GDC?

Whatever it is, the voices are whispering that more news on this is coming this week as GDC progresses, so let’s try to act surprised.