I followed this story a bit as it happened. This seems like a good retrospective summary. It is a tragedy that we can't have access to at least some of those books. What's needed is a major change in international copyright law, but that would be a very difficult thing to achieve while legislators have almost no interest in the matter, other than occasionally extending copyright when asked to do so by Disney and co.
Obviously you can't change international copyright law by means of a civil action between a US-based "ad slinger" (as theregister.co.uk calls it) and some private writers' association.