SkiDiva......Thanks for posting that letter from J Crew. I'm happy to hear that they will still offer flat rate shipping through Borderfree.
"Just like now, you will not be charged any duties. That cost is absorbed by J.Crew, and it will not be charged on your order. "
See, JC admits here that they "absorb" the cost of duty. They just don't state that they do it by adding it to the item price. It's there but hidden.
So the only real change seems to be that we'll see the prices in Canadian dollars up front and not later on our credit card. That will be a good reality check before ordering, I suppose.