I, too, would love to see a 10mm CZ.
My only disagreement is your proposition of basing it on the CZ97, which, at least to me, is one bulky SOB.
I think you can actually start with the CZ-75 SP-01 Tactical, which is already available in .40S&W
I would definitely go with a longer slide, like 5.3" or something like that, to assist in getting a little more velocity out of a cartridge with that kind of potential (otherwise, you'd might as well stick with .40S&W). Keeping the accessory rail would definitely be a good thing, as well as a 15-round capacity.