The Battlefield 4 expansion Final Stand is now available for free on the PlayStation Store.
Battlefield 4 Final Stand DLC free on PS3 and PS4
Yesterday, EA made Battlefield 4 add-on Final Stand available to Xbox Live members on Xbox One for free.
Today, the DLC was made available for free on PlayStation 4 through the PlayStation Store. This is a limited-time offer, as part of EA's Road to Battlefield promotion.