Hey ja7toronto,
Did your wife went to apply for her health coverage? If you are in Ontario she can do it after she gets landed, but will get it 3 months later after the day she gets landed. However, bare in mind there is a requirement from OHIP that for the first 6 months since she gets landed, she cannot leave from ontario for more than 30 days, otherwise there is a chance to loose her OHIP.
The only thing your wife needs to get back in the country is her passport with her stamped COPR. You just tell them that you still haven't received the PR. I have no idea what PRTD is, but just her passport and COPR I think she will be ok
and probably that declaration form what she is bringing back with her.
Good luck