I've yet to play a canon DQ game, but I have a lot of faith in this one, mainly because this pangs of a game that Enix would have liked to do years ago but the right console never existed until now.
The Kenshin DQ,
the "spiritual" prequel to this game, strikes me as one of those pet projects by someone high-up in the company who really wanted to take the idea further but it couldn't bank on the success of any particular console since it was a standalone device.
I'm betting whoever the higher-up was must have immediately thought of Kenshin when he saw the Wiimote.
Thus, I expect a great deal of passion will go into the creation of this game and passion ALWAYS improves quality.
This is a must-have for me.