Definitely looks exciting!
Delta Delta Die uses the same facade as Massacre Manor (and R.L. Stine Fear Street before that, and House of Darkness before that). I wonder if the interior has changed much, or if it's the same layout with a few new props here and there.
Board to Death looks extremely exciting and very high quality. As someone mentioned earlier, it looks like a creation for Halloween Horror Nights. I also enjoy how the rat from Phantom Theater was recycled for it - it fits perfectly for the Mouse Trap room.
My only complaint about this house is its entrance... X-Base is extremely congested during Haunt, with two major roller coasters and a haunted house in such a small area. Had they reversed the house, having guests enter near The Racer and exit over by Firehawk, then the queue could've been restricted to a backstage area. Instead, it looks like it'll overflow and congest the midway for yet another year.