Dragon Quest interest in the west has decreased over the years, so I’m not sure if a Dragon Quest X PlayStation 4 port would make a localization more likely. I’d certainly love to play it on either Wii U or PlayStation 4. At least if it were on PlayStation 4, there would be a wider audience who would play it. I don’t think subscription numbers would do well on Wii U. Perhaps Square Enix is looking at the success of the PlayStation 4 version of Final Fantasy XIV and thinking to themselves that they could pull off a similar level of success for Dragon Quest X.
[quote]Dragon Quest X producer Yosuke Saito has said he wants to bring the game to PlayStation 4.
During the fan questions segment of this morning’s Dragon Quest X TV Niconico broadcast, one user asked if Square Enix would bring Dragon Quest X to PS4. Saito replied that he wants to put it out.[/quote]
Source: http://gematsu.com/2014/09/dragon-quest-x-producer-wants-game-ps4