That came out of nowhere. I never heard about it until now but it's exciting.
In case you didn't know, WOTLK was released a long while ago and every quest/instance/activity from the expansion STILL EXISTS IN WOW RETAIL! So for many of us, we never stopped enjoying WOTLK and adventuring in Northrend. There no need to wait for the welfare version - wrath is already live and waiting. Its not the endgame anymore. But it is still very much alive.Classic is just a way for players to see how it was when it launched live and waiting for patches to release. So if you want to enjoy Northrend, do what millions of us have done and continue to do - PLAY WOW RETAIL.
Awesome! :)
Here is my prediction for this book: it will be filled with plotholes, non-sense and also Dalaran will be mentioned to float around still in Northrend.