WoW Forum Topic #1(Keep it alive!): http://us.battle.net/wow/en/forum/topic/1921984038?page=1
Too long has it been since we had a native Linux Client for World of Warcraft. The last time we had it was way back in the vanilla beta. It's time for this to change, by the release of Mists of Pandaria, we want the Linux client that has been confirmed to have been used internally to be publicly released for the Linux community. We would even pay an extra one time fee of $5 for each expansion we already own to be able to use the client. Please Blizzard, listen to the cries of a growing community, with Valve working on Steam for Linux, AMD/Intel/NVIDIA are all working on better drivers for their graphics cards. The Linux community could even help you debug/bugfix the launcher. That is what we're here for.