Casey, if you are still here among this drivel, Dr. VanDrunen is a friend and we've talked about his two kingdoms manuscript a bunch. I'm pretty sure it's done but it'll take a while for editing and publishing if it comes to that. I wouldn't expect anything in the next year.
He did recently have another article published in the Journal of Church and State . . . no doubt some non-Christian somewhere donated money to Baylor University and its publishing wing and that makes Dr. VanDrunen an unbeliever . . . but his article is pretty good!
Baylor University || J. M. Dawson Institute of Church-State Studies || Autumn 2007