As a hobbyist photographer, I can tell you the problem with this will be optics. The discussion here (and the article itself) seems to act as if sensor pixel density is the primary limiting factor on resolution at this point - and it's not. [1] is an article that has a good and through discussion on sensors out-resolving lenses.

So, your limiting factor is glass, and manufacturing precision on that end is moving forward much slower than on the sensor.

[1] - http://www.luminous-landscape.com/tutorials/resolution.shtml