I have a hunch... I think they might be using this space as sort of an Innoventions-type attraction. There was a huge push for VR-type simulations at the Hackathon a few months ago. I'm thinking some sort of exhibition showing off the latest and greatest technological advancements coupled with themes that relate to those within the parks, which would explain the wait system given how small the area is.
If that is indeed the case, I'm thoroughly confused as to why they wouldn't replace Shrek with this, and then use GoA as a Universal Creative Exhibit and HHN house/indoor scare zone.