Sony has announced that the F.E.A.R. 2: Project Origin demo will be available exclusively to Subscribers of Sony's network show, Qore.
As DarkZero points out, that fact that it's a Qore exclusive could mean Europe won't be getting it but we'll check with Sony today on that one.
Monolith's F.E.A.R. 2: Project Origin is set for a February 13th release on PC, 360, and PS3.