Thanks for you reply. I need a bit clearification . If she fails to enter CANADA as a sponsored spouse and her medicals get expired meanwhile.1 - There's no priority.
2 - No, as long as she enters Canada before the expiry date of the COPR she'll be fine, she need not finish the landing process at the same time as you. If she fails to land before the COPR expiry then she would have to either apply based on her own merits or you'd have to sponsor her.
Do I need to start the whole spouse sponsorship process from scratch and begning, Or the whole process would be simpler ?