I understand that soon (this month) a smart eyepiece will be introduced by Pegasus Astro (SmartEye).
There is some information on it at their website. Seems that it can combine - visual, EAA, and some astrophotography in one unit.
Actual live stacking in the eyepiece that render images in color, that also can be displayed on another device and even saved for
further processing. Will be interesting to find out more.