Even in writing it's commonly stated that there are no new ideas, just new twists on old ideas.
For the most part this is true of gaming. I can't think of any game - console or mobile - that can't be traced back to a previous game design, except for maybe Peter Molyneux's curiousity.
Due to high development cost/risk there is vertually no new game designs in the console space. Anything new would be from independants using Steam/PSN/XBL/mobile.
I think Wii Music tried (and failed) to do something new. It wasn't a rhythym based game like previous 'music' games like DDR/GH/RB.
New interfaces breed new variations on older designs - Wii Sports, Angry Birds. But power doesn't appear to open new gameplay options anymore (just prettier).