Depends on who can please the majority. Growth and opportunities are in the motion segment. My guess is 3D will add a new dimension and attracts more gamers. With respect to 3DTV, glasses are needed. To sum it up the winner will be the one that bundles a motion controller and glasses. In theory this should be enough. HD graphics 1080P and a nice traditional controller will be a full win.
Nintendo can do this... will please all gamers or a particular group? (motion gamers)