For me, sixth edition is already a major success - page 405, line seven to be exact. It reveals that, far from being Nid-food, Squats are apparently alive and well and living happily ever after in the loving care of the Adeptus Terra.
We are NOT Demiurg.
All that remains is for a Codex to be released, and we'll all be very grateful. That is all.
Oh, and the rest of the rulebook is pretty great too!