Earlier today on Twitter it was announced that Kingdom Hearts HD 1.5 + 2.5 ReMIX will be coming to the PlayStation 4 platform in March of next year.
While the game will be releasing in North America on March 28th, it will release in Europe on March 31st.
The compilation will be on one disc and the gameplay will run at 60 FPS.
This compilation will feature six different Kingdom Hearts games and they are as follows: Kingdom Hearts Final Mix, Kingdom Hearts Re:Chain of Memories, Kingdom Hearts 358/2 Days (cinematic cutscenes only), Kingdom Hearts II Final Mix, Kingdom Hearts: Birth By Sleep Final Mix and Kingdom Hearts Re:coded (cinematic cutscenes only). These two games were originally released on the PlayStation 3 in two separate compilations in 2013 and 2014 respectively. Kingdom Hearts made its debut on the Playstation 2 and has seen subsequent releases on the Game Boy Advance, PlayStation Portable, Nintendo DS & Nintendo 3DS.
It was also announced on Twitter that Sora would be making his way to World Of Final Fantasy.
Kingdom Hearts HD II.8 Final Chapter Prologue is also releasing in January of next year. It will include 3 different Kingdom Hearts games and they are Kingdom Hearts χ Back Cover (cinematic cutscenes only), Kingdom Hearts HD: Dream Drop Distance, and Kingdom Hearts 0.2 Birth by Sleep (A Fragmentary Passage), which is secret episode/ending from Birth By Sleep Final Mix.
Source: Kingdom Hearts on Twitter