David Keck's long, long-delayed third novel, A King in Cobwebs, has a publication date. It will be released by Tor Books on 24 July 2018 in the US, ten years after the publication of the previous volume.
The book is the third in the Durand Col series, following on from In the Eye of Heaven and In a Time of Treason. The third book was delayed by the author starting a family and life getting in the way.
I haven't read the series but it does have some fans who've kept the interest alive for a decade.