That would be nice!

I've looked long and hard for a small red or amber dot matrix display that would fit there, without much luck. The display above that location is a transmissive LCD with orange and red bulbs behind it, and another one of those would work just fine, but I haven't been able to find any suitable LCD modules.

Another idea I had was replacing one of the small gauges (probably the analog clock) with a 2.5" LCD, but I found that generating the video signal becomes either too complicated (microcontroller + FPGA + video encoder) or too bulky (mini-ITX motherboard, power supply, etc.). I pursued both of those ideas to some degree, but ended up deciding to keep it relatively simple in the interest of actually finishing the project. It's easy to overestimate how many evenings and weekends will be available for tinkering on this kind of thing!