what has happened to these 'Great Lakes shoreline opportunities'?

The National Park Service has posted on-line a nearly 50-year-old document that inventoried what were then unspoiled Great Lakes shoreline areas worthy of preservation as national, state or local parks. The 1959 study was bankrolled by a private contribution. It's heartening to see which areas have been conserved and poignant to see which opportunities were lost forever. For example, in Michigan Sleeping Bear Dunes became a national park (lakeshore) 11 years later. Bass Lake Dunes, however, is carved up.

What are today's Great Lakes shoreline opportunities and what will they look like in 50 years?