I have BPi-R2-pro in stock. It didn't take a lot of work to get basic support in the main core (there is already a primary part there), I also added a number of fixes. There are the first results of the Armbian launch.
I took the latest version of the Armbian image for Station P2 and immediately launched on BPIR2Pro without changes. Immediately works HDMI LAN (first port), HDMI sound, 3.5 analog sound, eMMC, USB, power button.
Although it shows a temperature of about 50 degrees when working (when playing the video to full screen), I recommend installing a cooling system right away.
When using the default DTB (rk3568-bpi-r2-pro) from the 5.18 kernel sources, some of the hardware is not working yet, but it is easy to fix.