On March 9, 2018, Trainworx announced that it will re-release new road numbers for its 52 foot 6 inch Gondola. Reservations are due April 30, 2018. Estimated delivery is 4th quarter 2018.
For more details about this product, here is a link to the InterMountain website page for this item.
Here is a link to previous Trainworx's 52 ft 6 in Gondola on TroveStar.