Amazon now offers preorders of World of Warcraft: Cataclysm for North America and the UK. The NA listing carries no release date while the UK version shows a September 3, 2010 release date, which is probably just a guess, as no release date for the expansion has been announced. Thanks IncGamers, where they have listed their extensive efforts at calculating when Cataclysm might be released by analyzing the historical trends of WoW preorder dates compared with release dates.