As you already know, the Tokyo Game Show 2016 begins next Thursday, September 15 and runs until the 18th. There will be big news from all the major Japanese publishers; Sony, Capcom, Square Enix, Bandai Namco and more.
Expect Sony to have a big presence. Their press conference is happening September 13 at 4 p.m. JST/ 12 a.m. PT/ 3 a.m. ET. Sony just had their own PlayStation meeting where they revealed new hardware, so their Tokyo Game Show 2016 is wide open for software announcements.
Bandai Namco is set to announce new Dark Souls 3 DLC, Square Enix has new action title in the works as well as Final Fantasy 15, and Capcom is expected to announce a new Monster Hunter title.