Something that we’re still waiting for: silver-colored line markers in the rail cars’ destination signs. The 7000-series cars that will be trickling into service this fall will be equipped to show a Silver Line-ish hue, but Metro has not committed to retrofitting older cars.
The 1000s and 4000s will be retired in the next few years, so they probably won’t have retrofitted or new signs. But the 2000s, 3000s, 5000s, and 6000s will be carrying passengers for many years to come, and it might be helpful for those trains to be able to show the silver color on signs.