Ideal Number of Megapixels

[HDNitehawk]

Agreed and even now there are no lenses that can out-resolve the Sony 36 megapixel sensor in the D800 including the new Zeiss Otus so why push it much further in a 35mm format?

I think Canon could offer a sensor and body that would take advantage of what the Zeiss Otus will do.
Whatever the limit is I think a sensor that out-resolves the available lenses should be on a wish list.