Alright, I was looking through the FAQ the other day when I noticed this Q&A:
Will I be able to move characters between dimensions?
Yes, we will allow players the opportunity to transfer characters from one dimension to another at a later date. There are no plans to allow players to transfer from the test dimension to either Rubi-1 or Rubi-2 and vice versa.
Now correct me if I'm wrong, but wasn't this FAQ made around the game's release? Wouldn't you consider this to be a later date already? I personally would like to see this implemented sometime.