I hope you aren't tired of Civilization V add-ons because Firaxis Games seems quite fond of them. On August 11, the destroyer of time is getting two premium packs: Civilization and Scenario Pack: Korea and Wonders of the Ancient World Scenario Pack. These are $4.99 a piece or $7.49 when bought as a bundle.
The former includes the Korea civilization and The Samurai Invasion of Korea scenario, while the latter introduces new wonders -- the Mausoleum of Halicarnassus, the Statue of Zeus, and the Temple of Artemis -- plus a scenario based on owning more wonders than rival civilizations.
This talk of Zeus has me longing for an update to Age of Mythology ... and now I'm depressed because that won't be happening.