Not surprised that they are discontinuing the Isaiah book, it was so dull and drab. As another poster brought out the whole book is about the restoration of the Israelites to their homeland. So each chapter had the same "modern day fulfillment", it was really a stretch. It's really a historical record and has no particularly great meaning for us today. Their was never any need for a verse by verse prophetic take but we endured it.
What surprises me is that they are doing away with the Revelation book. How many times did we study that book? Each time being told that it was one of the deeper things that needed to be studied closely. Now we don't need it at all, isn't that amazing? I wouldn't be surprised if they let some time pass so that people forget about the explanations given in the Revelation book. Then they come out with a new book on Revelation incorporating the new understandings of Jesus parables that they have been doing lately. Of course that one will then be the one that is so important to study deeply. LOL