In a recent interview with Famitsu, Dragon Quest X producer Yosuke Saito mentioned ports of the game for the Nintendo NX and PlayStation 4 when asked about the server load on the current Wii, Wii U, and Windows version of the MMO.
Translated by IGN, Saito’s repsonse was:
Dragon Quest X currently sits on version 3.3 with no word of the game’s version 4 release date other than it’s currently in development alongside with new content being worked on for version 3. As it stands, no official confirmation has been made whether the game will come to Western regions or not. Stay tuned to Nova Crystallis for all the latest.