I noticed that the cabooses issued in the late 80's and early 90's have reappeared in the new Lionel catalog on pages 88-89. They used to be advertised as semi-scale but have now been promoted to Standard O . I have no argument with this as I myself am a scale guy and have a half dozen of the earlier issues.
There are several styles in the series (6-177XX) including both wood and steel with variations. Since I try to stay in the 1930-1940 period, I always liked the simplicity of the markings in this series.
The description in the new catalog makes them sound exactly like the old ones. I'm assuming they will have more features than that since they are priced identically to a "loaded" I-12 caboose on the same page.
I ordered the Santa Fe so I'll let you know.