I kind of wish the entire gauge cluster were a configurable TFT display.
Then I'd like to see Chevrolet create a program for your personal PC (or Mac) where you can customize every aspect of what's displayed on the cluster, upload the customization file to a USB thumb drive, and be able to upload it to the car from the on-board USB plug.
Of course, the program would have to have some safety checks that would force every display to have certain gauges shown somewhere on the display at specified sizes before the file could be saved and transferred. But could you imagine people freely sharing their custom display setups online?