I tried to post this yesterday but my network connection dropped.
I was going to get some photos during the tour but decided to respect the posted policy not to. The new line is along the far wall from where they always have the tour come into the building. If you have been on past tours it's the area along the back wall where they used to always have stacks of cabinets that had come in from Churchhill. There are several labelled workstations just for MMr production and there appears to be dedicated playfield rigs (not sure what these are called officially) along that wall. There was one assembled game, several populated playfields, one populated whitewood playfield, the cabinets shown in the bootleg photo. I can't think of anything else to report. There are many parts bins at the dedicated workstations but I didn't see a lot of parts, they let the tour get close to this new line so maybe they didn't want folks collecting souvenirs?
All in all it appeared to be what Rick has been saying. A dedicated line that is pretty close to startup as soon as they get their final approvals. In any event they certainly appear to be intending to run these games at the current location before they move to the new facility.
The info from the tour guides concerning MMr was a little boilerplate ("address all questions concerning MMr to the PPS folks"), but they did tell our group that in addition to this separate line they were able to run MMr cabinets down the main line when they get started, so they will be utilizing more of the factory than just this dedicated line.
Sorry I have no pictures to show but hopefully this is all good news to those that are patiently waiting for their game.