FWIW, the Walther PPS is pretty close to what a single-stack P10C would be like -- its a great pistol at a great price point. Does the market really need another subcompact? I'd almost rather see CZ spend more quality time with its existing lines, plus bring back the P-06, rather than trying to compete everywhere. My $0.02.
Look at Glock as an example of the downside: As they spread out, their existing lines largely went stale. Yeah, they have Generation Whatever of each line, but those represent slight tinkering rather than anything approaching true innovation.