Just to be clear - WHY do you want to transfer to a more populated server? What makes you feel like your server is "dead"? Long queue times? Believe me, the populated servers are no better. If you're seeing hour-long queues on your server, you'll see them on a populated server, too.

As has been said, none of the FFXIV servers are dead, so whatever problem it is you think will be fixed by moving, probably won't be.