In the Kingdom Hearts 3D Ultimania guide book, Nomura suggested that a number of new games were already in the planning stages and that at least one announcement was imminent, reports CVG.
A sequel to PSP title Kingdom Hearts: Birth By Sleep, which was released last year, was ruled out, alongside a Final Mix version of upcoming title Kingdom Hearts 3D.
Nintendo 3DS exclusive Kingdom Hearts 3D: Dream Drop Distance releases in Europe on July 20 and North America on July 31.
It will feature new gameplay elements, including the ability to recruit more than 50 different types of dream eater spirits that can join Sora and Riku in battle.
Players will also travel to new worlds based on Disney's The Hunchback of Notre Dame and Tron: Legacy.
Kingdom Hearts: Dream Drop Distance will be the seventh game in the series after Kingdom Hearts: Birth By Sleep.
Watch the opening to Kingdom Hearts 3D: Dream Drop Distance below: