Book 8 update!
I don't consider it spoilerish -- it's the same level of detail that would be on the inside front flap of the hardcover -- but there were a couple of details that surprised me.
The impression I get from this description (keeping in mind that I've avoided almost all MOHB excerpts and #DailyLines so far, so I really don't have anything more than vague notions of what's actually in the book) is that this is going to be very much a character-focused, character-driven book, with plenty of action and lots of potential for conflict among those eight POV characters. The war's still going on, of course, but it might not be at center stage as much as it was in ECHO. (I could certainly be wrong about that.)
And if you're wondering about the reference to a "Moebius twist", here's an example of what a Moebius strip looks like.
I'm guessing that reference has something to do with time-travel paradoxes?
Also please note, Diana says in her blog post:
"I’m still _writing_ this. With luck, it will be published in fall of 2013."
"I told my editor I want an octopus on the cover of this book. (There are eight main characters whose stories are told--and they’re all linked together.)"
It's very exciting to see WRITTEN IN MY OWN HEART'S BLOOD starting to come together. I can't wait!