Here, some pages of guidebook : http://imgbox.com/g/wYc5ZAk2Il
VERY exciting!
The bulk of this is a character guide, grouped into four sections by character associations. Judging by Schierke's pages, each character entry will feature some similar elements, including height, weight, age (I think), and will also detail any major events about the character. Of course, it's less specific when it comes to the members of the God Hand, and for characters featured in Vol 39, it's even more vague, just giving their katakana names.
One great thing about this section of the guide is that we'll get some specific Romanized names, which you can see in the background of each katakana spelling. That means we'll soon know official (hopefully!) spellings for some of the more strange names, including Locus, Grunbeld, Corcas, Judeau, etc.
There's also a new interview from Miura that's 14 pages (quite long), and of course, fresh pictures of his studio along with some glances of things to come in the form of sketches.