Other options for Server Change
It’s been a long time, but there is a chance they could before a tournament. It would probably only be free to the lowest servers tho.
There’s already a discount in place for moving to a lower population server. Moving to a Medium population server costs only 500 gems, moving to a High server costs 1000 gems, and moving to a Very High server costs 1800 gems.
As simplesimon suggest above, you could wait for another tournament to see if they do a discount/free transfer to lower pop servers then. However, the last time they did that, it didn’t go well for the wvw population in many servers. I honestly don’t think they’ll offer a drastic discount or free transfers again.
If you really don’t want to pay the transfer fee, you both have the option of deleting all of your characters (put any important items in your bank before doing so) to be able to choose a new server for free.
Thanks for the feedback.