Does she have a temporary status here in Canada? If she didn't declare it during her initial application, you might need to be worried that they might revoke her status here, and issue Departure/Deportation Order. That could snowball into something worse for both of you, if you don't mitigate it.
[yes she has a work visa so both of us are TFW! we have ordered a PCC from Swiss so we'll see, what on! since it happened in 2004, and she spent 3 days in Jail while waitng to be deported!
do you think when we receive a AOR update that form stating that we have missed that???