I have a friend who works for Colorado Fish & Game and he said they've accepted that there is now a viable population of wild hogs in the state and are taking measures to try to control (as opposed to eradicate, which they do not consider a possibility anymore). They'll keep pushing north and continue to adapt!
Hogs aren't so much adapting as they push north, not in the sense that there are already plenty of feral hogs in areas farther north. As noted, they have them in Canada. That have some in several northern states as well.
As for Colorado not eradicating hogs, that is really wild. Colorado proudly announced last year how they were the first state to eradicate feral hogs...
https://gazette.com/news/local/colorado-becomes-first-state-to-eradicate-feral-swine/article_2b14f53a-4f87-11ea-be16-9369a119e7b5.html#:~:text=Colorado%20has%20become%20the%20first%20state%20to%20eradicate,to%20eliminate%20wild%20hogs%20that%20spread%20disease%20and