Both FFXV and KH3 will be shown off at this year's Tokyo Game Show (Sept 19-22). Also attending will be lightning returns, FFX & X-2 HD and FFXIV.
http://expo.nikkeibp.co.jp/tgs/2013/pdf/release_20130830_2.pdf
Square Enix's TGS line up according to the exhibitors' list:
http://expo.nikkeibp.co.jp/tgs/2013/pdf/release_20130830_2.pdf
Square Enix's TGS line up according to the exhibitors' list:
Lightning Returns Final Fantasy XIII
Final Fantasy X/X-2 HD Remaster
Kingdom Hearts chi
Final Fantasy XV
Kingdom Hearts III
Final Fantasy XIV: A Realm Reborn
Dragon Quest X Online
Dragon Quest Monster Parade
Drag On Dragoon 3
Call of Duty Ghosts
Thief
Wolfenstein: The New Order