We only know what's in EA month to month for the moment.
Go to Matty, look at the very top just below the sales banner in the center at the links that say --- Shop, News, Fanzone, Forums.....Subscriptions.....click subscriptions.
Back to the top in the same place as you clicked before just below the banner.... click "Early Access"
It will take you to the page, an at the moment it tells you when the next EA sale will be, but not what's coming. But the news section will eventually tell you that.
Also, what I found out is that your EA shopping cart can not be combined with the regular Matty cart.