That D will get muscled around with ease. I would suggest they bring a guy like Samuel Morin who should have 1 full NHL season under his belt (2015-2016 season) by then. They will need his size, grit, and penalty-killing.
Sam Morin? I'm guessing its not a coincidence that you see a flaw that you think Team Canada could solve by adding your favorite team's prospect...
The issue is that Morin is not that good and would be a step down from pretty much every D man listed so far.