Re: the real WZ 10
Well the PLA seems to be acquiring WZ-9Gs faster than acquiring normal Z-9s, so it appears that PLA are pretty interested in the attack helicopter thing.
20 sounds reasonable for preproduction run and evaluation. But gosh, why depend on foreign engines so much, wish Chinese aero industry would one day make its own comparable engines, will make logistics much easier and you can build aircraft whenever u want rather than waiting for foreign engines to come. I mean 50 engines, god the WZ-10 uses 2 already, and u gotta save some for spares...
I'd expect around 100 to be procured...won't be a huge number since China will not face another land invasion, and might export this baby in the future...perhaps a future candidate to replace Pakistan and Iran's AH-1s. As for a naval variant, i highly doubt it until PLAN operates a decent sized LPD or helicopter carrier. It would be an excellent counter to Taiwan's small missile boats though.
Its good that the WZ-10 appears to feature some stealthy design characteristics...unlike the chunky looking Russian choppers.