I believe the story has been reimagined as a blistering satire on Trump's America. Farmer Jones is now a veteran of the illegal oil war against Iraq, although we are invited to have a modicum of sympathy since his neglect of Manor Farm was a result of Gulf War Syndrome.
Napoleon is now a leading activist in the BPAOA (Binary Porcine And Other Animals) Group, fully committed to trans-pigs rights and a totally vegan lifestyle.
And Boxer is, as he always was, the naive fellow-traveller.