Reply from Jim Lunsford:
Decisive Action Brigade Level (DABL), like most of my serious games, will probably never be published by HPS because the military's requirements, while optimizing the game for use in the military classroom, significantly detract from the qualities of a good commercial wargame. I really wish I could get dual use out of the games. However, to convert the current games for successful commercial release would probably take more time than to start fresh and make a new version of the game.
Having said that, I have been recently thinking about developing a new version of Decisive Action for commercial publication. However, at this time, I am working on a fun project that I hope I can get to HPS before Christmas.
Thanks for your interest in my games!