Applied for a Nexus pass for myself (Canadian born), my daughter (Canadian born), and my wife (Canadian for the last 22 years, but born in Hong Kong) on Nov 10, 2019.
My and my daughter's applications, conditionally approved Dec 31, 2019.
My wife's... still pending review.
I'm assuming there must be more than one grouping of applications based on birth place since we literally applied within 30 minutes of each other and we have almost identical travel in the past 15 years.