It's the 5th full "expansion" (Zilart, CoP, ToAU, WotG, this one). Then there was the 3 add-on stories (Crystalline Prophecy, Kupo d'Etat, Shantotto Ascension) and the 3 add-on battlefields (Visions/Scars/Heroes of Abyssea) so we'd be up to 11 if you counted those as expansions. I could see an...