The answer is probably not because a Puppy of one kind or another will read this post and insist that actually the boycott is going full strength and even now they have enlisted the power of the heat death of the universe to destroy Tor books using the inevitable outcomes of thermodynamics.
However, has it ended as a ‘thing’? Apparently so. There is no fixed date and I doubt we’ll be seeing any gushing reviews of a Tor published book or story from a major Puppy outlet anytime soon but it does seem like the Tor Boycott has been quietly retired.
For example: Look at the masthead here August13 2016 http://web.archive.org/web/20160813210211/https://voxday.blogspot.com/
and then here on August 26 : http://web.archive.org/web/20160826144457/https://voxday.blogspot.com/
The other major promoter of the Tor Boycott was Peter Grant, a Sad Puppy supporter and now Castalia House/Vox Day published author. His last mention of the Tor Boycott was in September while spruiking Declan Finn http://bayourenaissanceman.blogspot.com.au/2016/09/sad-puppies-loud-giggles-and-new-book.html
Aside from that, it would seem that the mighty Tor boycott fell victim to a lack of steam and short attention spans. That isn’t news, of course. I think everybody but Peter Grant knew that it would fizzle away into nothing.