Are you an American? Because this feels like a very US-centric view. I know you're not advocating for this, but it feels like the predictions you've set out for Canada are hitting this intrinsic bias that people who are really into geopolitics always have - they always think about the world as a fully-informed chess game where everyone always makes optimal moves, and they're biased towards predicting sweeping world-changing events that rarely happen due to a multitude of issues. The few major events that do happen often end up unraveling in completely different ways than the internet had predicted.
The Albertan separatism thing is largely drummed-up due to American aggression towards Canada, it slots right into the news cycle alongside threats of annexation that Canada was getting not that long ago. That being said, even in a province as conservative as Alberta, it remains a fringe view, even though some politicians are now willing to say the quiet part out loud. Consider how hard Quebec had tried to secede on multiple occasions, and yet despite having a far stronger case and far more supporters, still failed every time. Talking about Saskatchewan is just trying to lump them in with the Albertans, where in reality that group is even more niche.
But then talking about Yukon and the Northwest Territories just makes this look like enthusiastic map-painting. The reality is, both of these places are overwhelmingly indigenous, and they'd have no reason to ever want to not be part of Canada. Also, they're both territories, which in many ways means they're ruled directly by the federal government, a.k.a. you won't be getting those short of a military invasion or completely ruining the rest of the country to the point where they can just cut it all up.