I picked up the Z3v on the 24th and my store had a silicone case (which I think is actually TPU) in black and lavender. I picked up the black one. It fits very well, like most TPU cases, but the black is a shiny glossy black so it is a fingerprint magnet itself. It covers the power button and volume keys as well as the Micro SD card slot. The USB charging cover is cut away of course. There are very tiny cuts in the top and bottom of the case on the front for the speakers and LED Notification light. Ports are also cut for the headphone and mic.
It's actually a good case, and had it been frosted or smoked, I'd keep it on there. Hoping we see some other options soon. A Bugdroid TPU case in smoke would look great on my white Z3v.
Edit: Verizon has an Incipio case in black and purple coming soon. AGain, black and purple. Those rumors of Verizon releasing the Z2 were probably true since the Purple was a prt of the Z2 line. They also have their standard crosshatch patterned/kickstand holster combo coming.