Late to this thread, but I just clicked the link. The cars are still available so I placed an order, paid and got a confirmation email. Maybe there was a restock or a second run?
I checked here and on eBay in November but couldn't find any info, then bam, while looking at Prewar Macy's sets on eBay this morning I saw the new boxcar listed and sold for for over $100. The ugly brown one from 2016 went for $160. I have all of them, just couldn't pass this one up.
Strange marketing on these boxcars through the years, it has always been a struggle. It seems the only way to get information is from the forum. Thanks again OGR!