According to the Japanese Playstation website, to celebrate Kingdom Hearts's 15 year anniversary, a limited edition Kingdom Hearts PlayStation 4 will be released on January 12th, 2017, the same day as 2.8's Japanese release.
This PS4 will cost 33,980 yen + tax for 500GB PS4 and 38,980 yen + tax for a 1TB PS4. Preorders start on December 9th and includes an executive PS4 top cover, an original theme, and an original design, and (of course) Kingdom Hearts HD 2.8 Final Chapter Prologue.
The "KINGDOM HEARTS 15th ANNIVERSARY" PS4® top cover will also be sold until December 22, 2016 for 3,000 yen.
Images for the bundle can be found down below.
"Kingdom Hearts" PS4 to be Released in Japan to Celebrate 15th Anniversary