Well I know of 3 P101s destined for here in the US that have not yet started assembly!!!
I know they have custom parts like black and white powder coated (I presume) exhaust, the disk wheels, tonneau cover, etc. I wonder if they are building the cars as they get in the parts. ???
I don't think they would hold off production just for the tours. They will probably reuse the factory floor space for whatever future 3 Wheeler they will build, but I am guessing that is still quite some time away, and they wouldn't want to be giving tours of that process anyways.