Originally Posted by
Gember
I would suggest they keep only Dynamis and Oceania's doors open until they figure out the technology to create cross-DC party finder.
This way Dynamis has a chance to grow, and friends who are on completely different regions can still visit each other on OCE. Both DCs could use some friendly travelers to help with the DF queues, which would help in the long run to get players to stick around, and grow their communities in time.
I am only speaking for NA, but I am sure EU's new Shadow DC could use the same treatment, and whichever datacenter is the lowest populated in the JP region.
They mention its possible to do cross-PF, but it would be a huge challenge, and that sounds like it could be years before its added to the game. (I could be wrong though.) Might as well be smart with the system, and help the communities out with these sort of restrictions for the time being.