It's about time they put the reasoning book out of our misery. A JW can't use it anymore without knowing which parts to disregard as old light. Which renders it pretty useless for representing the "correct" way to "reason" on the scriptures.
As for the Isaiah book, just the other day I pointed to the one left in stock at the KH and told the brother working literature that we would definitely never study it again. He seemed surprised to hear such a prediction.
On the other "hand", the Revelation Climax book is currently being studied in the School for kingdom evangelizers as if it were a genuine resource for deep bible study in 2015. Of course the point of such schools are hardly to produce Bible scholars.