Someone with application delivered on April 1, has just received AOR, the process has slowed down a lot, it is taking almost 3 to 4 months to receive it. Be patient, check in the old e-CAS
https://services3.cic.gc.ca/ecas/security.do some applicants have not received the email with AOR, but they can find the information here and it indicates AOR was sent, probably email address was incorrect or something. Or you can call them if you have not received AOR they will not find the information in the system but if AOR was sent to an incorrect email address they will be also able to provide the Citizenship application number by phone. If you have not received the returned application package that means they are still reviewing it.