Looking at the drawing of the back cover, it would seem that the corners are more rounded than current Samsung tablets. This could indicate the beginning of a new line, or a softening in the design of a refresh for a current tablet. While the FCC visit isn't really much of a help, perhaps some more information will be released in court. After all, a tablet with an 11.8 inch display is a bit too big to keep under wraps for so long, especially when you have Apple's attorneys requesting every piece of scrap paper ever used by Samsung employees.
source: FCC via Phandroid