I know that you are fully aware of the queue issue where people are waiting 5+ hours to the play the game. The solution to roll to a new low population server can be quite complicated for some players because they are playing with friends or entire guilds. In my scenario I have an entire guild 50+ people that I am playing with and started my Classic character with. We leveled together and are almost level 20. The issue here is that we now have players that cannot play with us and have been waiting in queue for 3-5 hours.
I firmly believe that if you open up character transfers for these classic WoW characters - people would go to lower population servers as they would be able to transfer with their friends or entire guilds.
This is quite a complex situation indeed and there has not been any sort of communication from Blizzard on what is going to be done about this. Will people get refunds for their time or sub time added to their accounts?