If there is any chance that you want the new Sony FE PZ 16-35mm F4 G Lens, place an order for it immediately upon that option going live at 10:00 AM ET this morning. You can cancel the order at any time prior to it shipping if you change your mind.
Order the Sony FE PZ 16-35mm F4 G Lens from B&H | Adorama | WEX
Here are a couple of interesting comparisons:
Sony FE PZ 16-35mm F4 G Lens Compared to the Sony FE 16-35mm F4 ZA OSS Lens
Sony FE PZ 16-35mm F4 G Lens Compared to the Sony FE 16-35mm F2.8 GM Lens