Dragon Quest X will be released in Japan for Wii U in Spring 2013, Square Enix announced today. Last month DQX producer Yosuke Saito told attendees at the Tokyo Game Show that next Spring was the aim, but the release window was confirmed today during a Nintendo Direct for Japan.
An open beta is scheduled for February 2013. Saito also confirmed Square Enix is working on making Wii characters compatible with the Wii U version.
The MMO arrived on Wii back in August, selling over 400,000 units in its first week. A Western release for either verson remains unconfirmed, so don't start pencilling away the greater part of 2013 just yet.