This was posted elsewhere by a user named kiwisoup(Mild Spoilers):
I summarized the new information from the media preview event tonight from the main event plus several interviews, concept artwork, etc... there's a few minor potential spoilers:
General information:
-Mike Aiello can't comment on Legendary Truth (with a big grin)
-No roaming scareactors in streets
-Updated videos for Rocky Horror Picture Show: A Tribute
MASKerade: Unstitched
-Giant candles with faces on either side of entrance
-They are violent and will rip their flesh off when they see you
-They have candelabras with knives on the ends for weapons
Bayou of Blood
-Voodoo Queen ritual sacrifice every hour
-During the ritual the Voodoo Queen speaks in tongues and "goes crazy"
-Different colored lighted jars synchronized to lighting and music
-The jars "contain" things needed for the ritual, and there will be effects to simulate the Voodoo Queen drawing power from the items in the jars.
-The Voodoo Queen has an assistant with a very "Baron Samedi" inspired look
Face Off
-10 characters from the last 7 seasons of Face Off
-The main characters are used as a distraction for scares (minions?)
-Characters have different sets (think the icons in HHN: 20 Years of Fear)
-Switching off 5 different characters every 45 minutes (each cast displays different costumes)
The Purge: Anarchy
-Freight trucks, "bread truck"
-Will feature "show" moments like capturing people, auctioning off people,
-2 Motorcycles
-Characters from both films
-TVs in display windows will be playing themed videos
Giggles & Gore, Inc.
-Features mimes
-Very gory, hence the name
Dollhouse of the Damned
-Created characters first, environments second with settings based on the characters
-Porcelain dolls, knitted dolls, marionettes
-The one maze that creeps Mike Aiello out
-They chose a very Mexican outfit as their display. Traditional Mexian Dolls look like this, so I think it's a fit.
Roanoke: Cannibal Colony
-Old school Horror Nights feel
-Separates itself from all the other houses this year
From Dusk Till Dawn
-Based in the last 3 or 4 episodes of season 1.
-Will feature the Gecko Brothers, dancing vampires
-Concept artwork shows "The Twister" and a woman in a bikini
Dracula Untold: Reign of Blood
-Movie has an Oct 10th release pushed up a week for the event
-Features a character from the movies called The Master
The Walking Dead: End of the Line
-Biggest maze ever produced in the history of Halloween Horror Nights, the size of two mazes from start to finish
-Follows in exact order of season 4, starting in the prison, ending in Terminus
-Lots of prosthetics
-Not a double run
-Cast of 100, 50 each set
-One setpiece is a destroyed prison tower
-There is one scene in a confined space that features 14 walkers
AVP: Alien vs. Predator
-Used what they learned from the AWIL puppets
-All Aliens are puppeted
-Weyland bioweapon facility
-Most detailed and layered maze in a long time with a lot of work put into lighting as well
-Predator masks feature red lights
Halloween
-You go outside between homes, including the garage
-Only mentions the original John Carpenter movie, but there are said to be "nods" to other movies like Season of the Witch
-Features the tombstone scene
-More about style than gore, but still violent
-Projections onto the facade to make the house deteriorate before your eyes (think Acid Assault)
-Sounds like you do walk through the front? Might be mistaken on this one
