According to B&H, the Canon EOS R and the other items announced alongside are scheduled to arrive Tuesday, October 9.
As always, your use of these links for your preorders or any other purchase supports this site!
Preorders
Canon EOS R Camera
Canon EOS R (Body) - B&H | Adorama | Amazon | Wex
Canon EOS R with RF 24-105mm f/4L IS USM - B&H | Adorama | Amazon | Wex
Canon RF Lenses & Adapters
Canon BG-E22 Battery Grip for EOS R - B&H | Adorama | Amazon | Wex
Canon RF 24-105mm f/4L IS USM Lens - B&H | Adorama | Amazon | Wex
Canon RF 28-70mm f/2L USM Lens - B&H | Adorama | Amazon | Wex
Canon RF 35mm f/1.8 IS STM Macro Lens - B&H | Adorama | Amazon | Wex
Canon RF 50mm f/1.2L USM Lens - B&H | Adorama | Amazon | Wex
Canon Mount Adapter EF-EOS R - B&H | Adorama | Amazon | Wex
Canon Control Ring Mount Adapter EF-EOS R - B&H | Adorama | Amazon | Wex
Canon Drop-in Filter Mount Adapter EF-EOS R** - B&H | Adorama | Amazon | Wex
Canon EF Super Telephoto Lenses
Canon EF 400mm f/2.8L IS III USM Lens - B&H | Adorama | Amazon | Wex
Canon EF 600mm f/4L IS III USM Lens - B&H | Adorama | Amazon | Wex
Canon EF-M Lens
Canon EF-M 32mm f/1.4 STM Lens - B&H | Adorama | Amazon | Wex
** Variable ND version scheduled to arrive October 9. Circular Polarizer version scheduled to arrive in February 2019.