The mechanics of the DSLR we know today is a dinosaur that is left over from the film age. In a few years cameras will evolve in to something completely different in design. With the direction technology is moving at some point there will be even less if any mechanical moving components inside of the camera.

I just hope when the new technology evolves, it is not done in such a way that I have to replace all my glass. I think were safe for another ten years or so.