Emil,
I highly doubt such a feat would be re-attempted. Firstly, the prevailing mindset that currently inhabits the corporate structure of the PB Co. is not what anyone could confuse with "purist". All one has to do is look at recent work done to the course to know this as a certainty. So, expectations of restoring the dunes like look at both Pebble Beach and Spyglass Hill is but a fantasy.