Well, there are 11 cards... so one of them has to be one of the 4 Adventures previewed so far: Lost City, Magpie, Hero, or Storyteller. And another has to be one of 5 promos. Time for process of elimination...
1. Cornucopia: Horse Traders
2. Prosperity: Peddler
3. Base: Adventurer
4. Dark Ages: Survivors
5. Intrigue: Wishing Well
6. Adventures: Lost City
7. Guilds: Journeyman
8. Hinterlands: Border Village
9. Alchemy: Familiar
10. Seaside: Lighthouse
11. Promo: Stash
Edit: Damn, ninja'd with an exact match