I recieved my order from Adafruit this weekend. Checking out the pins for the RGB seven-segment displays, there are a few slight differences.
Yes, missing pins! There's no problem; the missing pins aren't connected to anything. They do, however, allow for a bit more flexibility in routing a project that uses these displays.
Other than that, these displays match my Eagle footprint, so I'm going to call that a win. Now I'm only waiting for the OSHPark boards to arrive, and I can start assembly.