Mine just got shipped out today!!
I believe it's still the B4 one. The description on the page still says so, and so far there hasn't been any official news regarding the smaller version already being printed (or has there?). And also, the price didn't change. If it was the smaller one, I doubt it'd stay at US$62.
But if I really get the smaller version, I'm gonna complain(!!!) T-T
And maybe try and get my hands onto a B4-sized one. ._.
My poor wallet's feeling very empty these few weeks.