Emphasis on large; I had to redo the entire layout (have been working on it almost 24 hours straight), but it was worth it! New backgrounds, new army list graphics, new artwork, no B&W pics (some are still tinted though). I also did a major revision on their background, I've scrapped about 30 pages of fluff (most notably religion, magic, and politics), but have extended the unit entries a bit instead. This was partly to get the book more in line with the other army books, and also because it is meant to be an army book rather than a source book; as such, it has more focus on their land and history, and less on their society.
As for new rules goodies, I've included a Ranger character (based on the Kislev ranger from Mordheim) and allowed Priests of Ursun to be taken as Lord choices as well as heroes. Nothing major in that department, but it sure looks a lot better now visually.
I have also decreased the file size to only 10MB and I'm now able to print directly to PDF from Word, which will really speed up the printing process in the future.
Enjoy!
Edit: Uploaded a new small revision that fixes some layout issues for intro pages as well as flips page numbers and backgrounds the correct way.
Edit 2: uploaded yet another version that makes some minor changes to the "Kislevites" section. Man, I love being able to save directly to pdf, saves so much time with smaller updates!