Great early breakdown. I agree with most of it, but I'll elaborate on three in particular:
Curling: I'm expecting a comeback after two very disappointing showings for Canada in Pyeongchang and Beijing. I think the national federation is taking it more seriously now that the world is catching up, especially in mixed doubles. I expect three medals, but a gold will be harder to come by.
Hockey: As usual, women will be expected to win a gold. It'll be exciting seeing the men have NHL players, but I don't even think Canada will be a gold favourite. We simply do not have a goaltender. We have a couple of low-to-mid choices, so unless someone rises up suddenly in the next year it'll be hard to fight for gold. McDavid will only be able to do so much. USA, on the other hand, will have a very complete team with excellent goaltending. Even if Russia competes, they are the favourite right now. But, anything is possible in a one game elimination series.
Short Track: This is currently our strongest team perhaps ever, which is surprising given how much stronger other countries have become recently (although the USA has dropped off the map almost completely). As you said, 3 is a minimum but as this team stands right now, they could run away with the medal table. However, short track is always unpredictable and anything can happen in the races.
I agree, high 20s for total medals, could even get into the 30s if the stars align. I just hope Canada wins more golds this time. 4 in Beijing (and only one individual) was a tragedy.