help question about unlocking all areas & playing cards.

Ok so I've gone through the game and just finished the main story, so now I'm going for all the fragments & trophies. I have almost all the fragments apart for the show off your bestiary one, 3 from serendipity, 7 of the paradox endings and defeating the last 2 monsters from the Archylte Steppe. I have also found and used all the wild artifacts to unlock all the other gates I can but noticed there are still 7 areas locked out (would have been 9 but I unlocked 2 with the Heads or Tails pack and the omega pack for the dlc arena). I heard the other gate on the far left will be unlocked with the Lightning dlc but what about the others? Are they all for dlc or is there a way to unlock them? If I use that other view buy pressing L1( I'm playing on ps3) it shows there's still one for Valhalla which I'm guessing is for Lighting's dlc, but also one for New Bodhum, Oerba, Sunleth Waterscape, The Archylte Steppe, Agusta Tower, and A Dying World.So again is there anyway to unlock these other areas?

The other this I wanna know is it possible to play the card tables in Serendipity with Serah and Noel? I have the Heads or Tails pack and can use them with Sazh but if I try with the other two nothing comes up on the tables and the girl you can ask about them just brings up a message still saying will be unlocked with future dlc. Thanks for any help you can give.