New variant/upgrade.
The way the logic of the system is programmed, it's keeping track of the amount of time since the doors opened, until the entry doors close. while tracking the progress of the theater ahead of you.
When it's waiting for the theater ahead and knows it has plenty of time, it starts playing the various info bits the guy spouts off. The ending is always the same.
When it measures it's going to run out of stuff before you move to the next room, it switches to the holding mode.
Holding has apparently been upgraded.
The one people rarely see is for if there was a delay getting into the room or the ride is empty ahead for whatever reason and it wants to load ASAP, so the intro is short, info is the shortest version, and you go into the next chamber pretty quick.
There's also a manual mode that bypasses the first room entirely. It still "plays" a show in a sort of "ignore me, move on" mode.