Does the Canadian subscription region include VNC charts?

Yes, ForeFlight Mobile includes Nav Canada VNCs and VTAs as part of any subscription with Canadian coverage.

Image 1.  Example of VNC chart around Toronto.

Additionally, subscriptions with USA coverage include FAA VFR sectionals and Low & High IFR charts covering limited portions of southern New Brunswick, Quebec, and Ontario.

Image 2.  Example of FAA VFR chart coverage near Canada.