Blizzard announced the natural next step for WoW Classic during the Warcraft 30th anniversary stream.
World of Warcraft Classic is going to Pandaria.
Blizzard’s relaunch of the original 2004 World of Warcraft (plus some modern features) has been working through the MMO’s 20 years of expansions—it’s currently on 2010’s Cataclysm—and it’ll reach 2012 next year with Mists of Pandaria: Classic.