At this point it seems a safe bet that Gringotts won't be fully ready for the package previews, which leaves me with 2 questions: 1)Would they run it at limited capacity for the package previews since it's a controlled amount of guests, and 2) have we reached a point where they need to get the TMs "real world" guest experience and crowd flow execution down such that they can't be held back by Gringotts being ready for full use?