When the locked realms are the same size as the other realm so a long time.
They outright said indefinitely the realms will remain locked.
While in the post making it clear they do not want mega realms and they will remain locked to prevent more from getting there and stopig those that are from remaining that size.
There was word on that it was in the vary post when they locked them.
And yes there is reason you can’t transfer toons when you got one there. You are the exact stated person they are trying to get too transfer. The person less committed to that realm at the time of the lock, as you were not fully invested into that realm hense why not all your toons where on that realm.