Increase TT card drops through out the board.

Increase the MGP you can earn for trading in doubles -- thus giving people a chance to get a little more scratch to spend on card packs (if that's what they prefer instead of playing/farming NCPs.

OR allow people to trade double cards. Only today I was running WoD with my fc and my friend who happens to tank mainly won the card on 2 occasions. TWO.

Maybe make the "timed" NPC's a little more notable? Not everyone is going to run around with a off game app/site that has Eorzea times on it.

That's just some of the things I can think of that would help with TT.