Looks like there's a new catalog. http://mthtrains.com/news/589 GS series has the smoking quillable whistle!     MTH-OneGauge-Catalog-2017.pdf     Update:5/1/18 --- Two GS4 paint schemes have been **CANCELED** due to not enough pre-orders.     - 70-3032-1 - All black SOUTHERN PACIFIC GS-4                          - 70-3035-1 - All black BNSF GS-4