There's a theme to the Hot Zones, and it's decidedly old-school. All of the affected zones are from the original game's release, with none o' them newfangled expansion areas included. The bonus zones are The Caves, Antonica, Sunken City, The Commonlands, Nektulos Forest, Enchanted Lands and Everfrost. EQII. The announcement on the community site also features quite a staggering number of screenshots of the aforementioned zones that are sure to poke at your nostalgia glands, and perhaps inspire you to get out there and make use of the XP bonuses on offer.