There is another book set listed on Hatchette's website with an expected release date of October. Outside of the 640 page count and $18 price tag, nothing else is really included or hinted at. With such a low price point, it is most likely one of the small packs as opposed to that awesome Daring Do chest above, but there is always a chance we will see another collector series again.
The submitter, Brony250, guesses that it will be a pack of Princess books, as the Twilight one will be out just before October.
Regardless, we will let you know when we know more!
