They plan to use DC travel as a way to reduce congestion by allowing people to go to less populated locations, such as Dynamis, Materia and the Cloud Data Center that was previously setup if it's needed.

Quote Originally Posted by strawberrycake View Post
I feel like we'll see a LOT of people trying to rush going to play with friends, or go to "better" servers for content reasons
I think we will see a surge either way or a lot of congestion that will render DC travel unusable anyway, despite the aforementioned intentions that SE has for Dynamis, Materia and the Cloud DC. However, I could be wrong, especially if travel to a low-population DC does not suffer from congestion.