There's a PvE to PvP Paid Character Transfers FAQ on the World of Warcraft Forums explaining that Blizzard is expanding the premium service of character transfers to allow transfers of PvE characters to PvP servers. They head things off by answering the most obvious question first, which is why have they changed their policy in this regard: "Because World of Warcraft has matured significantly since the inception of Paid Character Transfers, we don’t feel that PvE-to-PvP transfers will have the negative impact on the game that we initially wanted to avoid when we started the service in 2006." Thanks Massively.