Good to see the interest in SaP. Some comments.
Due to the size of the CG, many existing counter types are required which exceed the standard number from BV. This will be a challenge - to include many more standard unit counters. Not that many new counter types will be required however.
The team that has been involved includes the best in the business - Pete, Chas, and some of the most solid CG playtesters in the ASL world who live in SoCal (Jim Aikens, Eric Morton, Fred Timm) have been hammering and fine-tuning away at this for years. The scenarios are intense tournament sized battles over a wide variety of terrain type. Once it's published, it will be an instant classic.
The idea was to find a battle at Kursk that could present in a microcosm the larger battle for Kursk; the irresistable force up against a deep and fluid defensive belt. In the CG, each side gets to command a very large combined arms force, covering a large piece of terrain, both rural and strung-out urban.
If your dream is to push a lot of panzers and infantry across vast grainfield, or to set up a deep defensive belt with mobile reserves - then this is your game. It's BRT and RB combined, but with some interesting surprises which keep the game highly fluid.
We can only hope MMP can put it out there within a reasonable time period. Stay tuned.
Don