Also got the request for passport scans in January and no response since then. I guess they want to confirm physical presence with the passport stamps which is stupid. Half of the time I go to the States, they don't stamp me there. 80% of my returns to Canada, they don't stamp me here. I fly privately and when you fly your own plane, you usually don't even see a CBSA officer when you come back. All you do is call them, declare customs by phone and they say, "you're good to go" without even showing up in person. I had customs come out to my plane ONCE and even when they did come out, they didn't stamp my passport lol.