The wait for Kingdom Hearts III has been lengthy and ongoing, and the latest twist involves Square Enix moving the game from its internal Luminous Engine to Unreal Engine 4.
Siliconera translated director Tetsuya Nomura's thoughts on the surprising change during a recent interview with Famitsu.
“The [development] is going steadily and according to the schedule,” he said. "Due to having switched to Unreal Engine 4 for various reasons, we’re having trouble on some parts as far as rendering goes, but with help from the folks at Epic Games, progress is going safely."
Long rumored, Kingdom Hearts III was finally announced at E3 2013 for Xbox One and PlayStation 4. Though we've heard sporadic updates about the game since then, we have no idea when Kingdom Hearts III might actually be finished. Nomura is famous for taking his time, but he recently removed himself from the director's chair on Final Fantasy XV, signaling Kingdom Hearts III may be his priority going forward.