Price: $29.99
Release: June, 19th (Northern America), June, 22nd (Rest of the world).
Contents of the expansion:
* New Feature: Religion
* New Feature: Espionage
* 9 civs
* 9 wonders
* 13 buildings
* 27 units
* 3 scenarios
* 2 new city state types
* 2 new great person types
* Tweaks to the combat system
* Different tweaks on the base civs unique powers
List of civs (9 in total):
1. Netherlands (William I; image)
2. Celts (Boudicca; image)
3. Mayans (Pacal; image)
4. Byzantines (Theodora; article)
5. Carthage (Dido; image)
6. Huns (interview)
7. Austria (Maria Theresa, screenshot)
8. Ethiopia (Haile Selassie, screenshot)
9. Sweden (Gustav Adolph, thread)
For more info regarding the civs please see here
List of wonders (9 in total):
1. Terracotta Army (screenshot analysis)
2. Great Mosque of Djenne (screenshot analysis)
3. Petra (screenshot analysis)
4. Neuschwanstein (article)
5. Hubble Space Telescope (article)
6. Great Firewall (article)
7. Leaning Tower of Pisa (screenshot)
8. CN Tower (screenshot)
List of natural wonders (unknown number)
1. Mt Sinai (article)
List of units (27 in total, including Great People):
1. Mark V tank/Landship (screenshot analysis, article)
2. Machine guns (1 hex ranged, article)
* 1-hex ranged unit.
* Upgrades from Gatling Gun, which upgrades from Crossbow.
3. Pictish Warrior (screenshot analysis and article)
* Celtic UU.
* Generates faith by killing other units.
4. WWI-era Biplanes (screenshot analysis)
5. WWI-era Triplanes (screenshot analysis)
6. Great Admiral (German article)
7. Great Prophet
8. Inquisitors (article)
9. Missionaries (article)
* Cost 200 Faith.
* Spread religion to 2 cities.
10. Gatling Gun (article)
* Upgrades from Crossbow, upgrades to Machine Gun.
11. Composite Bowman (article)
12. Composite Bow
13. African Forest Elephant
14. Quinquereme
15. Great War Infantry
16. Mehal Sefari (UU for Ethiopia)
17. Marine
18. Battering ram (Hunnic UU)
19. Horse archer (unknown sort; Hunnic UU)
List of buildings (13 in total):
1. Bomb Shelter (article)
2. Cathedral (article)
3. Shrines (article; not confirmed as a building)
List of technologies:
1. Combined Arms
2. Ballistics
List of religions (11 in total):
1. Buddhism
2. Christianity
3. Confucianism.
4. Hinduism
5. Islam
6. Judaism
7. Shintoism
8. Sikhism.
9. Taoism
10. Tengriism
11. Zoroastrianism
List of scenarios (3 in total):
1. Fall of Rome- Play as either Eastern Rome or Western Rome trying to fend off the barbarians OR as one of the barbarians themselves.
2. Medieval- Grow your medieval kingdom into one of the great nations of Renaissance Europe, fending off outside invasions from Mongols and Ottoman Turks and fighting the religious wars of the Crusades and Reformation!
3. Empires of the Smoky Skies- Build flying airships and huge tractor-like tanks from the unique tech tree of this Victorian science-fiction scenario, and use them to spread your empire across the pre-industrial world.
New city state types (2 in total):
1. Religious
2. Mercantile (get their own unique resources, such as jewellery)
New city states
1. Antwerp
2. Lisbon
3. Marrakech
4. Vatican City
5. Jerusalem
6. Zanzibar
7. Prague
8. Colombo
9. Milan
Espionage:
* All espionage operations will have a diplomatic impact if discovered
* Espionage is carried out by 'spies'. Things you can do with your spies:
o Stealing techs
o Counter-intelligence
o Viewing enemy cities
o Leaking war plans from one civ to another
o Rigging elections to influence city states
o Coups in city states
* Change of success in coups and election rigging based upon the time a spy has spent in a city and their 'individual skill'.
* Spies are not units on the map, but are controlled via menus (article).
* If a spy is caught, it is executed.
* When viewing an enemy city, there is an 'intrigue menu', which gives you access to information that you can then share with other civs.
* Three tiers of spies; Recruit, Agent and Special Agent.
* Everyone gets access to spies when the first civilization enters the Renaissance.
* An additional spy is made available to each civ when they enter a new era.
* England gets an extra spy (UA change?).
Religion:
* 'Faith' is a yield that is accumulated like others in the game, e.g. culture (see here, and speculation).
* You get a 'Pantheon' belief when you hit 10 faith.
* Pantheon beliefs are generally terrain based.
* Certain units can generate faith by killing other units.
* Can found a religion when you earn a Great Prophet.
* Can have a combination of up to five beliefs (article)
* You get founder beliefs and follower beliefs. Founder beliefs give you rewards for religion spread, whilst follower beliefs give you rewards to any city following your religion.
* Religions can be renamed.
* Religion designed so that not every civ in a game will be able to found one.
* Can spend faith to build missionaries (cost 200 faith). They can spread your religion to two cities.
* Religion naturally spreads to cities within 10 tiles.
* List of Pantheon, Founder and Follower beliefs is available here.
Other things:
* Unit health increased from 10 to 100, and the pace of combat has been slowed.
* Naval units now split into melee and ranged; melee ships can attack cities.
* Embarked units can defend themselves and stack with naval units (article).
* Religious units can help to spread influence to city states and gain alliances with them.
* Embassies will help with espionage operations and diplomacy.
* You can 'bully' city states by placing units near them, though this will have a negative impact on your influence with them (article).
* City state quest system expanded, and they can set three quests at a time. Quests can be individual or global.
* Stonehenge is an early faith-giving wonder (interview).
FONTE 
