Kingdom Hearts HD II.8 Final Chapter Prologue is the last HD Collection to be released, after I.5 and II.5. It will contain an HD Port of Dream Drop Distance, Kingdom Hearts χ Back Cover, and an all new 'episode' title Kingdom Hearts 0.2 Birth by Sleep: A Fragmentary Passage. The HD Collection is being made for the PlayStation 4.
The game is scheduled for a release in Japan on January 12, 2017 and the rest of the world on January 24, 2017.
The game was originally scheduled to be released worldwide in December of 2016, but was pushed back to January 2017, due to development changes, having the game also being released on the Playstation 4 Pro, and to avoid competition in sales on another Square Enix title, Final Fantasy XV following the latter title's delay.