Well, at least the US public test realms are sort of online... in my experience I get a few seconds of connectivity before getting kicked off and needing to log on again. And of the two pre-made characters I attempted to copy over, one wound up on the PVE test realm and another on the RP-PvP test realm. But, usual technical problems aside, the realms are online. Of special note is the fact that the two world PvP objectives in Silithus and Eastern Plaguelands are not yet up on the PTR, though Blizzard explains they will be patched in later for testing. So what is there to test? Well, you can check out the rogue changes, the cross-realm battlegrounds, and anything else that didn't make it into the patch notes. Head over to the PTR site to download the client and copy a character. Head over to the PTR site to download the client and copy a character.