I agree that the pandemic is getting Canada closer and closer to the demise of cash. I'd say, when everything returns back to normal, it won't be the same as it was a year ago, as a lot of establishments will be permanently closed, people will be laid off (many, permanently), prices will skyrocket, and people will refuse to go into a store, and will consider online shopping their new way of life.
It would be quite interesting if the $10 bill's existing demand will be erased, prompting the BoC to retire the $10 bill prematurely into its Desmond era.
By the time life returns to normal, a recession is a 100% guarantee. Worse than 2009, in fact.