Never going to work. Sea lanes >>> Road in long distance trade in the first place, and CPEC remains closed for a good few months due to the heavy snow and ice. in N. Pakistan.
The real game isn't even colonising Pakistan. It is to keep India so busy and threatened that it doesn't block the sea lanes.
At present,Main land china is overpopulated and nearly exhausted all of its resources. And most importantly their construction industries in those areas nearly saturated. So they will try exploit the less explored venues.
Since the xinjiang and tibetan plateau is sparsely populated(also less developed),ripe for the taking. Expelling uyghurs is not a coincident with the current scenario. They will industrialize those regions in ginarmous scales, and the migrant workers will tip the scale of population to the chinese favor.
As far as the snowbound routes, believe me,they will come up with some kind of megalomaniac project to counter it. In coming years, CPEC corridor will not remain solely a road project. They will expand the project into a robust railway network.
Legally, porkland will stays as a independent country .But in reality chinks will setup multiple satellite towns spread across CPEC corridor under their iron fist.(obviously chink military will deployed to "protect" their citizens).
