Since publishing his original MiRage, Zack Freedman has been working on the next iteration and now posted a video talking about the features and design considerations of the MiRage Mk2.
There are some interesting ideas like (temporarily) connecting the halves with a SATA cable (not the best idea it turns out) or the MX/Choc hotswap support with per-key LEDs at the same time.
He got rid of the clickable OLED displays and replaced that part with a huge clickable e-paper touchscreen.
As much as it hurts me to make this decision, the clickable OLEDs just completely suck – Zack Freedman.
It turned out that by pressing the corners of these displays over and over again they eventually break.
And because of the e-ink display library he used Arduino (instead of CircuitPython) this time – run by a XIAO RP2040 (keyboard contest anyone?).