In approximately 10 minutes B&H will start their live steam panel on the new Sony A7R III mirrorless camera ($3,198):
The Sony A7R III has already been shipping in Europe and the first cameras started shipping in the US today.
Sony Alpha a7R III pre-orer links: B&H | Adorama | Amazon | WEX | Jessops | Park Camera
Additional Sony a7rIII coverage: