At this point, we can be fairly sure an 8-inch Galaxy Note tablet is a thing that's happening. It has shown up in numerous benchmarks (as the GT-N5100), and supposedly packs a 1280x800 LCD display, which we can all but guarantee will be of the Wacom variety.
Now, Samsung's head of mobile JK Shin has allegedly confirmed the device's existence to Korean news outlet iNews24. The announcement was made at an invitation-only dinner with some of Samsung's newly-promoted high-level officers. Also on the list were a few members of the Korean press. At some point, Shin revealed to iNews that the 8-inch Note would be revealed at MWC in Barcelona, late next month.