This image here is supposedly an internal sketch of part of the rumoured iPad Pro, sourced from a Foxconn worker. It shows the corner of a thing that is apparently between 6.9 and 7.5mm thick. And not much else.
The leaker says the device is from a later batch of prototypes of Apple's larger iPad, with this one featuring four internal speakers to allow Apple to reinvent listening or sell buyers a second pair of ears or something. [Nowhere Else via Mac Rumors]