Disney has put up a page confirming that Haunted Mansion Holiday will be up and running this year, but because of the festivities surrounding Pirates, there will be no event.
But I'm sure that won't stop the constant "yes there will be HMH/no there won't be HMH" debates from continuing.
Here's the link:
http://psc.disney.go.com/eventservic...sionevent.html.