Will the public still have access to federal lands within wild and scenic river areas for hunting and fishing?

Yes. Fishing and hunting are regulated under state laws. Where hunting and fishing were allowed prior to designation, they may continue. The river-administering Secretary may, however, designate no hunting zones or periods in which no hunting is allowed for public safety or other reasons. The Secretary must issue such regulation in consultation with the wildlife agency of the state(s).

Source
Interagency Wild & Scenic Rivers Council