http://na.square-enix.com/events/ffx...ranscript.html

Most significant in that interview (at least to me) was:

Community: Are there any plans to transfer characters between worlds whenever the player wishes?
Sage Sundi: Actually we do have a plan in place. When we recreate the billing system at the end of the year, then we can start creating new systems like world shifting. For instance, GM's have the ability to move characters between servers so all we need to do is connect those systems with the billing system. So yes, we have started working on that.
!!

I WOULD LOVE TO BE ABLE TO WORLD SHIFT. SO MUCH SO THAT I HAVE TO WRITE THIS IN ALL CAPS. AND WITH A BUNCH OF EXCLAMATION MARKS!!!