Personally I think an updated camcorder would be incredible. CCD with global shutter and in a pocketable format with modern stabilization, a video analog to the rx100. Way too niche though.
Nothing of technical merit haha. It’s a bit like vinyl vs CD for me, the analog component is cool. I also like the idea of swappable ADCs, not that any camera has actually done that.
Note where I'm coming from, not a photographer but a user of scientific image sensors.