Mothman: Evil Incarnate was announced on Loren's CryptoZooNews the other day. It is his second book on the Mothman.
Here's some info from CryptoZooNews:
"Mothman, Evil Incarnate: The Unauthorized Companion to The Mothman Prophecies (Cosimo, 2017) by Loren Coleman is a completely new Mothman tome. It has material on the 2017 Chicago sightings, background biographical insights on John A. Keel, the Michael Winkle annotations and links between The Mothman Prophecies book and film, an analysis of significant Mothman documentaries, and the updated Mothman Death List containing 200 named individuals and their stories. The cover art is by Claudio Bergamin."
The book comes out December 15th and can be pre-ordered from the International Cryptozoology Museum online store.