Several months back, there was a construction note that came about the same time that announced the 600 loop expansion.
The construction note was about installing several trailers in a Visual Display Complex and also mentioned merchandising. We all wildly conjectured what it might be.
Then Bay Lake Campers said something about this was backstage.
Then another former Cast Member stated that large prop pieces at the Disney Stores were called Visual Displays.
Then TCD did some spying and found some work that looked like it correlated with the construction announcement in a backstage area.
Now this latest construction note mentions a card reader, which indicates that is accessed by Cast Members with a key card.