Are there any more regions that are completed enough to be transferred to the Japan Template?
I would say if any, Kanto and Johto should be a good idea. But then again, it isn't up to me to decide. There were three rooms left to finish for Johto, and there is only one left. So after that last floor is finished, all that will be left is checking things, converting and adding new 1.8 blocks, changing everything to be uniform, terraforming. So I would say it would be a good idea to think about. (And the magnet train after all terraforming is done)