Proof: Aerial footage of VIA and GO locomotives (and cab cars). You'd be lucky to find an aerial shot other than Google Maps. Especially old shots of GO K5LA's.
They could've sent it back to Alstom. Proof: Tri-Rail 510 was sent back to Alstom for repair, even though the employee that leaked the information said it was an old style and it would be harder to fix.
Where's 200? And in one of the pictures I found on the web, on 206's rebuild, I noticed the K5LA missing. In newer pictures, it looks like a K5CA-LS on the roof.
About the old cabs with CEM, Sunrail has CEM in their old style coaches. I don't think they have it for their cabs. Any opinion on the old cabs having CEM?