After a wild night of server issues, I decided to log onto my account page and try to copy my warrior over to the PvE test server. Lo-and-behold, after a few tries, the copy request went through! Horray!
Of course, it says that the queue is 4 days long. I seriously doubt this, as this is often wrong. Hopefully later today many more of us will be happy little World of Warcraft campers with shiny new Sunwell toys.
While you're waiting for your character to be copied over, you can check out all our patch 2.4 coverage. From our picture galleries of Sunwell Isle and goodies found while combing through the patch files, to the latest about the many new recipes and all that new loot, WoW Insider has got you covered!
Update 12:22 p.m. EST: My character was copied over, in less than 12 hours. Some players are still reporting that they cannot get the copy screen to work, so it looks like Blizzard might have taken it down again. However if you're really itching to get on the PTR, it might be a good idea to check back every 15 minutes or so.