So we have our first update on how long we will be waiting for Book 3.

Book 2 logo

Bryan on Tumblr mentioned the following
"P.S. I forgot to mention, we have seen the first four episodes of Take 1 animation from Studio Mir on Book 3. AWESOME STUFF! They continue to blow us away. The premiere date hasn’t been pinned down, but we are on track to airing Book 3 with MUCH less of a wait than the unfortunate one there was before Book 2 aired. We are all incredibly excited for you all to see the new book. For now, I hope enjoyed the Book 2 finale!"
I have bolded the important info. Given the delays with Book 2 I did not expect to hear that they have got Take 1 animation for 4 episodes so soon, Take 1 Animation is exactly what it says, Mir's first attempt at the completed animation, Mike and Bryan will review it and request changes. Since Mir are so good, I am sure much of the Take 1 Animation is used in the final episode. The second big thing is obviously capitalised MUCH less of a wait for Book 2. We waited around 15 months for Book 2, 6 months longer than any previous wait. 15 Months from now would leave us in February 2015, I would guess that this puts us back into the usual 9-10 month range. So My prediction now would be somewhere between May 2014 and September 2014, but probably closer to September. A big thing would be if we get Book 3 before or after SDCC 2014, if it is before then where will we get info about Book 3 from. Thoughts?