EA announce the 'EA Access' trial dates as follows...
Unravel - February 4th 2016
Plants vs Zombies: Garden Warfare 2 - February 18th 2016
UFC 2 - March 10th 2016
10 hours of unrestricted access is promised.
Plus you can carry over your saves (not Plants vs Zombies: Garden Warfare 2) to the purchased games.
Multiplayer open beta for Plants vs Zombies: Garden Warfare 2 on PS4 XOne starts on January 14th 2016.
Subscription to EA Access costs £19.99 a year or £3.99 a month.