Given the state of genetics I suspect a recovery of Wooly Dogs is possible. The first step would be to recover the complete DNA of one, very possible. Then the DNA of existing dogs throughout the world would have clues as to which genes were responsible for the 'Wooly'. I would not be surprised if simply cross breeding and selecting those closest would come up with something very close to the 'original'. This was likely how Wooly Dogs lineage was established in the beginning.
Given the state of genetics I suspect a recovery of Wooly Dogs is possible. The first step would be to recover the complete DNA of one, very possible. Then the DNA of existing dogs throughout the world would have clues as to which genes were responsible for the 'Wooly'. I would not be surprised if simply cross breeding and selecting those closest would come up with something very close to the 'original'. This was likely how Wooly Dogs lineage was established in the beginning.
It will be interesting to see what they find with the genetic testing.