I own this device, the Banana Pi M2 Ultra, and I want to add support upstream in OpenWrt.
The performance is much better than the already supported Banana Pi (Allwinner A20) which can only NAT around 400MBit/s. Since my internet is 600MBit/s, I wanted something faster, and the Banana Pi M2 Ultra with 4xCortex A7 is able to NAT at the full speed of my connection (600MBit).
I added a page on the Wiki ToH with the techdata.
Here is my GitHub PR to add support. I am already running OpenWrt trunk on my Banana Pi M2 Ultra.
While this is not the newest hardware, hopefully it is interesting to someone!