Here's some tasty tidbits I got a hold of and it looks like GW have worked very hard to innovate and punctuate a clear and better version this time around. I've noticed with recent WHFB releases that the more new books released the more moderated and game tested they are, and I don't doubt it will be mirrored from here on in 40K.
Having been lucky enough to be able to have a sneak peak ahead, from a quick glance there's lots of changes, but they have been thought out and looks very flavourful. For all those doomsayers yup you got your rant and spotlight, now it's time for the new edition to shine.
Yes the New Rule book will be a trio of delights.
More limited editions for those thus inclined ;)
There are some very cool bit's starting to be released.
This is just a taste, can't wait to have a look at the tome!
Apologies for the size of the images. My desktop is on the fritz and the laptop just doesn't have much software. I've got heaps more sneak peaks, and will put them up when the desktop is running again.