Now the only moving part is the VR-enabled sensor, instead of having a shutter life spec (for pro D series: 400K shots, Z9: ∞ ), maybe they'll introduce a sensor life spec...
I read that sensor goes into a safe, parked mode when you turn off the camera, one will have to remember to turn it off before caroming down a mountain
As for the size comparison, looks like I could do without an extra grip with the Z8, I added an extra grip to D70, D100, D200, D300, D600, D500, D7000, D810, Z6, Z7: they fit my hands better. Z8 seems about right for my hands as is.
Ciao from Massimo