I think a smart move would be Universal having a lights-on "happy" daytime opening for Five Nights at Freddys on certain days. I'm sure there's designs/props that wouldn't allow for it unless they specifically designed the house with this intent, but it wouldn't be hard to do.
It would be extra incentive to visit Universal Studios while Epic is Open, would require minimal supervision and could serve as a cool little photo-op/walkthrough promotion for the event.
Plus, attending the daytime version would be a cool contrast to the actual house you would normally see at night.