Basically the announcement states that all data indexedby FamilySearch volunteers will continue to be made available for free to the public through FamilySearch.org - both now and in the future. Access to the related digital images may not always be free to everyone, but FamilySearch will, when possible "seek to provide free public access to digital images of original records." Due to affiliate obligations, some digital records may only available for free access to FamilySearch members (volunteers and indexers who meet basic contribution requirements each quarter, patrons at Family History Centers, and members of The Church of Jesus Christ of Latter-day Saints who’s contributions support FamilySearch’s operations).
From the press release:
The general public will have several options to access any fee-based images offered under FamilySearch affiliate agreements. 1) Home access will be free for FamilySearch members; 2) access is free through a local Family History Center or the Family History Library; 3) access is often free through the record custodian or archive reading room; or 4) for a nominal fee, the public can access the images on specified record custodian or commercial Web sites.