For anyone that cares or found the shiny edges irritating, the 2017 iPad has matte chamfered edges meaning this is likely to spread to the Pro lineup later this year. Personally I think this looks better, especially on a tablet.
Another design tweak that will be coming to the Pros is the microphone array on the top and back. On the iPP, the microphones will not be moved here, but new microphones will be added in those positions to result in quad microphones.