The official Nintendo of Japan and Nintendo UK sites and the Nintendo of America twitter have posted further details on the January 8th announcement. A special version of the Nintendo Direct presentation, called Pokémon Direct, will be hosted by Nintendo President Satoru Iwata and simultaneously broadcast worldwide at 8pm JST, 6am EST and 11am GMT. We'll update the site with the latest information as it's revealed.
Pokemon X and Pokemon Y for the Nintendo 3DS confirmed.