Another one to be on the look out for. It hasn't even been released yet, and already they want a sequal. Below is a link with a review and trailer.
href="http://www.bloody-disgusting.com/film/1944">http://www.bloody-disgusting.com/film/1944
UPDATE: Unfortunatly, the trailer has been removed. Not just on BD, but everywhere that I looked for it. The review is still there. So for those who are into haunted houses, demonic spirits etc..., this looks like a good one.