We know 7 of them.
Frostbite engine technical director Johan Andersson of DICE confirmed that 15 games are in development using the Frostbite engine.
— Johan Andersson (@repi) October 20, 2013
We know that Battlefield 4, Need for Speed Rivals, Plants vs Zombies: Garden Warfare, Dragon Age: Inquisition, Mirror’s Edge 2, Star Wars: Battlefront and the next Mass Effect are all using the Frostbite engine. What are the other eight of them though?