I made it! On Sunday I am leaving for Singapore, and now everything has been sent to the graphic designer, who in a week has finished everything but Chapter 2 and 18, which she will do on Monday. So the book will be published in August 2019, definitely now.
There is an updated cover for Black Cross/Red Star, Vol. 4, with fantastic artwork by Jerry Boucher (who has the copyright of the artwork). Here is my own sketch. The final cover will be made by a professional.