Analog to digital conversion rates don't increase at nearly the same rate as many digital parts, but still, A-D converter speeds continue to rise. That's critical for continued advances in factory automation, where connections with the real world are demanding.
Analog circuitry is moving forward, with high resolution parts that run at around 200 MHz. That combination of speed and resolution lets engineers design automation equipment that runs more efficiently.
For those designers, enhanced output techniques that improve signal-to-noise ratios are also welcome developments. The black magic of analog may not progress at the same speed as microcontrollers, the continuing advances make it possible to keep improving efficiency on production lines.