It looks like September 14, 2021 (depending on geography) has been confirmed by Canon Hong Kong as the announcement date for the Canon EOS R3.
I believe that first shipments of the Canon EOS R3 will be in November, but I haven’t confirmed that information as of yet, but we don’t have long to wait to find out for certain.
Pricing for the Canon EOS R3 is not yet known, I have unfortunately received various pricing suggestions that don’t line up as of yet.
Canon EOS R3 Specifications:
24mp backside illuminated image sensor
Multi-Controller & Smart Controller
Vari-Angle Touch Screen
NEW accessory shoe
High speed 30fps electronic shutter with AF/AE tracking + RAW shooting at this speed
AF down to -7.0 EV
8 Stops Coordinated Control IS with Optical IS and In-Body IS