I have doubts that changes in selection pressure on wolves in their natural environment, no matter how many generations, is remotely close to domestication and selective breeding.
The thousands of years of selection in the Arctic shaped Huskies, not the old wolf/husky interbreeding, which only left small but distinct genetic markers. Those came from an ancient Arctic wolf that split off around the same time as the ancestors of dogs and modern wolves, which is why they still show up so clearly today.