If the queues don't calm down, they are eventually going to have to offer transfers from the high pop servers. We are a few days away from the first weekend. If people still aren't able to play with their friends by then, I imagine the feedback getting pretty intense.
I can imagine a scenario where there is like 1 or 2 weeks of free transfers from the launch realms so that everyone has a chance to reorganize themselves how they want. When I was planning out what server to play on, I had no idea things were going to be like this. I'm sure I'm not alone on that.