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It’s safe to assume that the gaming community in North America wants to play Dragon Quest X. After all, it combines the joy of MMORPGs with the awesomeness that is Dragon Quest. Add to that the pent of demand we have for a new Dragon Quest and you have a recipe for a frenzy.
Online petitions begging for localization have been springing up everywhere since the game first released in Japan on the Wii in August 2012. As the first MMORPG in the series, Square-Enix has since added support for the WiiU, PC, Android, iPhone, iPad and very recently Nintendo 3DS. As actual translations and platform porting may not be so pricey, a release outside Japan would likely require adding server and network infrastructure which requires capital and operating funds Square-Enix or a partner has yet to lay out.
In the mean time there is quick start login guide for the English speaking world here with corresponding pictures here to help enthusiasts get the PC version installed and logged in via a yahoo.co.jp account to play the free trial version. Controller and keyboard settings are here and Chrome gives a decent translation. Ingame translations are summarized here for the Wii version but are generally the same in the PC version. Enjoy!