Do you have any plans to develop an OLED display hat for the Rock Pi E with a “Prusa Mini style” rotary encoder or 3 or 4 buttons? After FriendlyARM discontinued their successful Nano Pi NEO2 Complete Kit, there currently is a gap in that segment and opportunity for you to take.
Alternatively, adding an OLED display and buttons directly on top of the PoE hat would be even better.
Here is a couple of mockups. Ideally, Ethernet ports should be oriented towards the person holding it and so should the buttons and display.