Have you (NXP) ever thought about making a i.mx233 sucessor?
Keeping PMU and audio codec (minimizing ADC noise) but with a better core (A7) (and Ethernet MAC if it is possible).
Any other of your solutions (for example i.mx6ul) needs a lot of external components that leads to a more expensive product, nearly double price than i.mx233 solution.
For audio and voice over IP market it would be a real winner.
And also for IoT products with voice control.