Reference thread:
viewtopic.php?f=10&t=8684

Wasiqi, it is not as hard to publish more endgame books as it is to write them. Nevertheless, Bill and I have such books in our to-write lists. So it is actually possible that your wish will be fulfilled within the next, say, 2 years.

tchan001, I'd love to write strategy books for high dans. However, I approach this project with strategy: firstly, I write or have written books describing necessary context, such as positional judgement, because the context is a requirement for proper decision making in advanced strategy; secondly, I write or have written books about fundamental strategic considerations. This preparation will then enable me to have the clear view necessary for writing strategy books for high dans. The preparation is very important, as I have experienced by having worked out part of the fundamentals of strategy. My own view has already become much clearer, so my strategy must be right. Take a look into my recent book to better perceive my long-term plan.