According to Armorama.com, two new entries in the Panzer Tracts series are slated for release within a month. Author Hilary Doyle says that the two new books will look at the Panzerkampfwagen IV Ausf. H and Ausf. J, and the late developments of the Sd.Kfz. 251 and its planned successor, the Kätzchen. The volume on the Pz IV will include the detailed research, photos and drawings that characterize the series as well as detailed information on different types of Schürzen as well as covering the Befhelspanzer IV Ausf J and Beobachtungspanzer IV variants. The second book examines the Kätzchen, a fully tracked vehicle intended to replace the Sd.Kfz.251 but coming too late. Some late variants of the Schützenpanzer Sd.Kfz.251 like the /17 with Schwebelafette or the /20 “Uhu” are covered as well.