Barkov should probably come over to adjust to the smaller ice. Lindholm, too. I doubt either does, if it isn't for the NHL. I'd let Monahan stay down in junior. Let him put up huge, eye-popping numbers and contend for the OHL scoring lead, while getting his chance to suit up for Canada in Malmo. Similarly, I'd let Drouin take over #1 C duties in Halifax, and be "the man" without MacKinnon (who I'd say probably makes the jump). Even Jones, I'd probably leave in the Dub. Let him dominate, put up enormous numbers, fill out a little bit, and just get a little older, more mature. What's the rush? D are supposed to take a little longer. Let him take a little longer. It won't hurt. MacKinnon is probably the only guy I'd be willing to give a real shot at an NHL spot to. Even him, though, I'd be inclined to let compete for the CHL scoring title with Drouin, and let them make up two thirds of the top line for Canada at the WJC.
All of it is Dave Tippett's fault. He's the worst.