This map gives a pretty good visual representation of the plan.

It looks as though the proposal is calling for the re-designation of lands that are currently a combination of National Forests, State land, and private land. The lands would be re-designated as one of the following

1. Addition to Olympic National Park, likely in the form of a "preserve" which would be far less restrictive than typical Park lands. Administered by the NPS.

2. Wild and Scenic Rivers (Defines a three-fold purpose for designated rivers: free-flowing condition, water quality and outstandingly remarkable values). Administered by the Fed land managing agency currently holding jurisdiction over the land/water, mainly NPS and USFS I think.

3. And National Forests lands to receive the "Wilderness" designation. Administered by the USFS. The most sensitive and critical eco-systems and likely the most heavily regulated with regard to use.

http://www.wildolympics.org/docs/map_WildOlympicsWildernessRiversPark.pdf