This is apparently what Nomura said in a magazine this week.
— Miraculous Maku (@RedMakuzawa) October 11, 2016
This was discovered by @, where he states that Kingdom Hearts 2.8 will run at native 4K for the PS4 Pro. I wouldn’t be surprised at this, considering it could just imply that Dream Drop Distance HD will support this (considering that was originally a 3DS release). We will hopefully hear more on this story soon and will update this post as further information releases.