From 1up
While Dragon Quest IX being announced for the DS rather than a home console was a big enough surprise in the first place, fans of the long-running series were even more shocked to discover that this latest entry will sport faster-paced gameplay and a surprising MMO-lite option to play with up to four friends. Assuming this multiplayer mode works similarly to the DS-and-Wii-linking Echoes of Time, it makes sense that Square would bring DQIX to the console as well. The only question that remains is whether or not the Wii port will receive a graphical upgrade -- the Wii and DS versions of the new Crystal Chronicles are going to be identical, after all. Hopefully Square will confirm this news soon and give us more details.
http://www.1up.com/do/newsStory?cId=3171621
Well Echoes of time really need a graphic update on the Wii.... but this Dragon Quest IX thing could be interesting.