https://dailyhive.com/vancouver/mark-v-skytrain-testing-expo-millennium
While the stations on the Expo and Millennium lines can accommodate the new 5 car trains, as of March, it's still just 2-4 car trains. Since 2010, the Canada embarrassment Line is still only running a 2 car joke of a train. Those stations weren't even designed to accommodate a 5 car train, just a 2.5 car joke after spending billions to build it. This is another fine example of not building proper big city infrastructure for significant higher capacity.
Fortunately, most real cities can run 6, 8 or 10 car trains. All of the SkyTrain stations should have already been roughed out to accommodate 8-10 car trains. Then it would have been so much easier and less costly to complete long stations.