I think there may be. But along way off. The license was picked up by Artana games and they are in heavy development for their new legacy game Origins.
but I believe there must be more war stories in the back ground, because in another forum they published a second edition rulebook. Not a change of rules, just a change in layout / explanation and they wanted to see if it made it easier to learn. Why would they bother if they didn't plan on continuing the series?
I saw the Artana link and yes there is a certain logic with a second edition ruleset, as you say why bother if they don't plan on continuing with the series.
What provoked me to ask was that I saw on this site expansions for Satlingrad and Destert Rats dated 2014 and no update posts about them.