In a sign that the 3.0 patch may be nearly upon us, the US PTR Character Copy utility is now up and running. There are no sign of premade characters yet, but it does allow you to transfer 4 of your existing characters to the US PvE or PvP Test realms. As usual, you must have an active Burning Crusade enabled account to participate.
The 3.0 patch, as you may recall, is the harbinger of the Wrath of the Lich King expansion, and will include many of Wrath's new features, including the new class talents and spells, barber shops, and even the Inscription trade skill. This is a huge step toward the release of the expansion itself, and we'll keep you updated on any further news we receive on the 3.0 PTR and everything beyond it.
[Thanks to Shawn for the heads up!]