It was discussed during the BGG livestream when Pretzel Games presented. It was between segments and likely not part of the archival videos. All I remember was discussion of a "dice tower" style accessory that one loads the zombie horde into to empty them onto the table as their movement.
That is great news and I figured that is what that chute tower was for. It'll be interesting if the game maintains a co-op centric game feel or if it will be more like the "vs" in Flick em Up
That and mention of it maintaining some character development/storytelling/rpg aspects of Dead of Winter.
Also really great news :-)
edit: This image from 2thetablereviews gives some hints about how the zombie chute works in a close up picture (I will probably refer to it awkwardly as the Don't Dead Open Inside Chute):
The numbers on the "lid" are attached to squares that look just the right size for Flick em Up sized feet. Then there is the red pin in front that looks like you pull out once all the zombies are placed.
One complication might be that the prototype doesn't look to be able to fit in the box after being constructed. Hopefully they have a solution so you don't have to take it apart and put it together all the time.