According to Digital Spy, "Kingdom: Fiefdom" by Dan Abnett and Nik Vincent will be published in print and e-book format in July 2014.
http://www.digitalspy.com.au/comics/news/a517946/dan-abnett-writing-2000-ad-kingdom-novel.html
The article also mentions upcoming (e-book?) novels "Strontium Dog" and "Judge Anderson: Rookie".