People only go on Dynamis for housing and maybe for the Road to 80 buff and then go to the other Data Centers to do content. I have an alt on one of the servers there and the fact even Limsa feels dead is not very good. I doubt that much will change unless they heavily push it when the Xbox players are here. (And by that I mean give them more rewards then the exp buff and the 1 million gil when you get to level 30)