As part of another online community, I recently learned of massive cancellations (not just postponement but cancellations) of computer equipment orders because a factory complex in China has been shut down as a result of the Coronavirus outbreak.
I wonder how likely it might be that other factories might be shut down causing production delays/cancellations in train/hobby manufacturing. Chinese geography is not my strong suit, and I know that the outbreak seems to be more or less geographically isolated for now, but the spread of cases worldwide suggests it will certainly spread around China.
Yes, this concern is all speculation, but it might be wise for us all be aware of potential setbacks in schedules already strained by delays. The efficiencies of interconnectedness have partners in possible roadblocks.
Naturally, human health is more important than our toys, but the same problems probably apply to virtually every field of manufacturing, including fields of much greater importance.
In any case, those orders from the new catalogs may take longer to be filled than consumers would like, FWIW.