According to
TransLink:
Commercial-Broadway Phase 2 upgrades are complete
Joyce-Collingwood upgrades are complete
Surrey Central upgrades are complete (this is the new entrance - pretty sure the old entrance will get upgraded soon enough)
Expo Line escalators - "replacing 37 escalators at 13 SkyTrain Stations along the Expo Line and at select West Coast Express stations". They're finishing Granville now and other than Commercial-Broadway (done) they don't list the other stations at the link.
Expo Line rails - they've been doing this at night for awhile (they're in New West at the moment).
SkyTrain Customer Communications Upgrades - this is the new screens they've been adding to the Expo and older Millennium Line stations. "Approximately 280 new dynamic customer information displays", upgraded PA system, new CCTV cameras "including 264 new guideway cameras", and digital customer kiosks.
Canada Line escalators - "added new escalators to Yaletown–Roundhouse Station, Vancouver City Centre Station, and Waterfront Station".
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