I think that e-watchman and his little online congregation are great. They're like termites - destroying the building from the inside out.
I think he will indeed write that book, simply because his ego demands it. Let him and his followers try to show that book to friends at the KH...WHAM....more DFings. Eventually, (if this hasn't happened already), the WT will be forced to pull the trigger on him.
Then we'll see what e-watchman is REALLY all about. He'll go down kicking and screaming all the way, but it will be a losing battle. No doubt he will seeth and stew in his own juices until he ascends to the rank of Apostate General. What a little monster the WT cult has created.