The next game to be added to the vault is: Need for Speed Rivals.
This update will also make the program available in an additional 19 countries which is just in time for the two new trial games: NHL 15 and FIFA 15. Both these games will be going live this month and you will be able to access them for 6 hours each and the standard 5 days early access to the game when it is released.
NHL 15 will hit first, being made available to you September 5th.
If after you trial either of these games you decide to buy them, your achievements and progress WILL carry over for you and you will save 10% on your purchase via your membership.
SOURCE: Electronic Arts