In January 2019, Athearn announced new paint schemes for its 50 ft Waffle side box car ($22.98). This MDC Roundhouse re-release will include three road numbers for the following road names: Baltimore & Ohio, Chicago & North Western, Rio Grande, Green Bay & Western, Louisville & Nashville and Rock Island.
These re-releases will feature body-mounted McHenry knuckle spring couplers and have an estimated release date of January 2020.
For more information about this release, here is a link to the Athearn announcement pdf.
Here is a link to previous releases as listed on TroveStar.