It depends on what “work” means – in other words, on whether players would consider a Kursk scenario appealing. Conceptually, Kursk would be similar to A&A D-Day (minus the water) in the sense that the battle was fundamentally a frontal assault on a heavily-defended static position, and similar to A&A Battle of the Bulge in the sense that it would involve ground forces driving into enemy lines, but different from both games in the sense that from the German point of view Kursk was a pincer movement aimed at pinching off a salient, and that from the Russian point of view it was a two-stage offensive-defensive battle. Personally I think it has good potential to make an interesting game, if it’s designed properly.