One volume that I have been anticipating for some time is Richard Bauckham's Gospel of Glory: Major Themes in Johannine Theology (forthcoming, Baker Academic). I am delighted to see that Baker Academic has released an excerpt of the Preface and the first chapter. Also, I was delighted to see the giants for whom Bauckham dedicates the book, as well as his interaction with a hero of mine, C.F.D. Moule, and his famous article, "Individualism in the Fourth Gospel," NovT 5 (1962): 171–90.
Update: It looks that Amazon has provided a "Look Inside" which provides most provides some of the book's contents!