As part of the ongoing expansion of Epcot, the Japan pavilion will be adding a 3rd table service restaurant, a signature seafood and steakhouse establishment that has yet to be named.
The restaurant will reside on the first floor of the shopping/dining complex, taking over space utilized for some of the Mitsukoshi store, merchandise storage, and other backstage facilities. Guests will enter the restaurant to the right of the existing Mitsukoshi store, along an expanded pathway across the front of the pavilion.
According to internal documents, the interior will have a few different themed rooms:

- Material Room (Check-In, Lobby)
- Wa Room
- Water Room
- Washi Room
- Wood Room
- Stone Room
- Earth Room
No additional information is available at this time as the project has not yet been announced by Disney, nor the 3rd party company that operates the dining venues in the pavilion.
No timeframe for the opening of the new restaurant has been given, but construction should begin in the next few weeks.