Thank you for the detailed steps on how to proceed in situations like these. I am in the same boat as well, our baby was born in November 2019 after the COPR issunace in October 2019, our COPR and medical expire on March 20 2020. We have raised a CSE on IRCC asking what to do in this scenario but didn't hear back yet, we were planning to submit all the required documents like you suggested via another CSE and see if they get to it. My concern is we have only a month for the COPR to expire and we do not want to show up for landing without adding our daughter as dependent, but however looking at your timeline it may take them time to get back to us and if they even do ask for submitting all our passports in three weeks, there is no way we can go before the original expiry date, so what will be our situation in terms of getting a valid COPR with additional dependents added and go for landing. Any help and input is appreciated.