Tried to transfer just now and when click on the token to open the transfer menu and pick a shard, none of the asian shards have arrows next to the to choose them. all the rest of the shards seem to be fine...
It may be that it was a time when those servers were down for maintainance.
I do not think it possible that a change like this goes in without a wide and amply publicized warning to players.
What if there are still players transferred either from asian or to asian shards who need to get back to their home shards ?
They would be cut out without any forewarning.
No, it simply cannot be, IMHO. I think the servers most likely were down for some reasons. Try again at a different time.