CTA has solicitations for 261 color LED signs, 261 HVAC units, and 261 Auxillary Power Supply units. Since the number 261 seemed strange but consistent, I cracked open the sign one, which indicates that it is for 3200 series cars. So it looks like they are getting some sort of overhaul, but not the complete one previously indicated.
The 261 signs are for 261 sign kits, including sign boxes, control panels and capital spares "to
be used for the mid-life rehabilitation of series 3200 rapid transit railcars."
The signs are to be controlled by something that looks like the current two knobs.
And somebody ought to read section 4.5:
"Each destination sign unit shall include a receptacle to connect a portable test unit (PTU), which shall be a laptop computer. ... "
"4.5.2. The PTU shall be used to download the destination sign's readings."
Also on the PTU software:
"188.8.131.52 Downloading of software updates to each system."
So they aren't programmable, are they? This spec does say to start off with the 45 readings already in the 5000s.