"Additionally, EA Access will also net subscribers 10 percent discounts on all EA digital content, which includes full games and DLC, as well as access to trials of new EA games nearly a week before they come out (with saves that copy over to the final game, should you choose to purchase it later). Games that will be eligible for early access and save copy-over are Madden NFL 15, NHL 15, FIFA 15, NBA Live 15, and Dragon Age: Inquisition."
This tells me that new release games will take quite a while to be included and that the games will not include the many DLC packs that EA loves to sell us. If you don't need to play day one or want anything other than the vanilla versions, it might be okay.