This is good news as it’s mean eligibility passed but still criminality,security and medical check so most probably VO already start the security check after eligibility pass. There are cases which their security check doesn’t take time and within two months getting PPR also there are others which have to go through comprehensive security screening which take more time between 4 to 8 months. Anyway, If you don’t get anything from VO after two months it’s better to request CBSA note. Let’s be optimistic and hope your wife getting PPR soon