Will BLOPS2 fall to the laws of diminishing returns?

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First of all I know Black Ops 2 will be a billion dollar selling game (eventually) but do you feel that Call of Duty has finally peaked, especially since Elite features are being given away for free?

Will Call of Duty BLOPS2 sell more, less or just about the same? And will the WiiU sales be respectable enough to set the tone for future COD support on the platform?