Chandos Publications has a page up showing the new cover for Pegg's revised edition.
"For this title, based on several years of further research, the author has uncovered much new information and photographic material on the development and operational use of the Hs 129 in German and Rumanian service.. . .The greater part of the book, however, is devoted to the use of the machine in North Africa and especially in Russia . . . Also included are numerous pilot accounts, details of examples captured by the Allies and a section on camouflage and markings."
"ca 224 pages w/ ca 300 photos & maps, technical drawings, newly commissioned colour profiles and appendices."
https://www.chandospublications.co.uk/hs-129/