Yes, DS Kane's ProxyWar, Book 6 of the Spies Lie series will be released soon... in early December, 2015. The manuscript is currently being copyedited by master copyeditor Karl Yambert.
But, to whet your appetite, here's ProxyWar's cover, designed by the legendary Jeroen Ten Berge:
Decades in my past, I lived in Manhattan, three blocks south of the United Nations. In this cover, you can see the UN General Assembly building with it's row of flags dotting the left side of the cover, and the tall Secretariat Building on the right side of the cover. Also visible are the two figures, a shooter on the right of the title, and a body lying under the title. The bleak, bare winter trees punctuate the scene at the top right edge.
I think this cover tells you enough to keep you shifting your weight on the balls of your feet, thinking, "Okay. Now, I want to read the story!"