Have Khadas thought of using the Amlogic S905D3 or S905X3 to make a device like the Nano Pi Neo 3
The Neo 3 has heat issues, thought to be caused by a SBC design flaw. Friendlyelec the makers of Neo 3 , are working on a RK3399 model.
If Khadas do produce such a product, do place the SoC on the bottom of the SBC.
Then SoC can be directly connected to a heatsink or a metal enclosure for cooling. Such a design can mean once installed in a case, you can flip the case over, so heatsink is on top. The connection ports are now upside down but usable.