The trial is so you will buy the membership once it ends, on the website it says
''What is Full Game Trial?
Full Game Trial lets you download the full version of a game to play on a trial basis at no extra cost for a limited period of time. Your progress will be saved and the trophies you earn will be unlocked if you purchase the game after the trial period. The length of playable time and duration after download varies on a game-by-game basis and will be specified at the time of download.
When the designated trial period has expired, the content is no longer available for play. To continue playing, select the full game and purchase it. Your progress from the Full Game Trial will be saved and any trophies you have earned during your trial will be unlocked after purchase''.
It will just stop.
