The Civilization V Expansion Pack Gods & Kings
has just been announced on 2kgames.com
The expansion comes with "Tons of New Stuff" like "27 new units, 13 new buildings, 9 new wonders, and 9 new playable civilizations. Among the new civilizations are the Netherlands (William I, Prince of Orange), the Celts (Boudicca), and the Mayans (Pacal the Great)."
Most important of course are the new game elements. Religion is back! Back in September 23rd 2010 Apolyton Civilization Site
already discovered that Religion was was removed from [vanilla] Civilization V
. Today the official announcement of 2K Games reads: "Using the new "Faith" resource, you'll be able to found your own religion and grow it from a simple Pantheon of the Gods to a world-spanning fully-customized religion."