Nintendo announced during a stockholder meeting that they're holding off on a DVD-ready Wii console because they're still having trouble to ship enough units of the current Wii consoles:
Nintendo's planned DVD-ready Wii system appears to be on hold at the moment. The morning edition of the Nihon Keizai Shimbun reports today that at a stock holder meeting on the 27th, company president Satoru Iwata said of the device, "With supply constraints [of the Wii] continuing worldwide, the priority is on the current model."
This updated Wii system has been mentioned by Nintendo before only in vague terms. The firm originally suggested a release date of some time last year.