I'm fairly sure that what was stated was that Civilizations/Leaders wouldn't have generic traits but leader-specific traits. Which I think is freaking great! If every civilization received it's own unique bonus in addition to leader bonuses, it'd make unrestricted leaders INCREDIBLY fun.
Infact, I'm going to brainstorm. But it's going to be in archaic civ4 terms of tile improvement and mechanics
First the Confirmed:
America: All grassland and sea tiles give +1 commerce(I can already hear the screams of broken!)
-Washington: All units receive the equivalent of the Morale and Leadership promotion
Germany: All German units automatically have the equivalent of the commando promotion, ALL tiles provide +1 hammers
-Bismark: All nations automatically have a +2 hidden modifier with Bismark, Bismark can declare war without the negative diplomacy penalties with other nations
Then the most Likely:
Arabia: No maintainance costs for units outside of borders, no war weariness when declaring war on a nation of a different religion, Capital produce 25% more beakers
-Saladin: No diplomatic penalties of war(or minimal), can draft from cities with state religion
Aztecs: No unhappiness from using slave labor or draft
-Montezuma: All units start with combat 1 and city raider 1
China: No barbarians can enter borders, cities start at size 2
-Mao: Can work more tiles than population, but will lose -3 food for every tile worked in addition per turn
Egypt: +2 culture in all cities, 50% wonder production (yes, I combined 2 traits)
-Hatshepsut: Starts with hereditary rule by default, 20% worker production
English: +1 commerce on all tiles, +2 commerce on all water tiles
-Elizabeth: Can swap civics without revolt, all naval units receive 20% bonus against other naval units
France: All units start with the leadership promotion, can draft from the start
-Napoleon: Charismatic trait, all units receive +2 exp., start the game with a Great General
Greeks: +2 trade routes in all coastal cities, +2 culture in all cities
-Pericles: Cities are immune to cultural revolt, naval units receive +1 movement
Inca Empire: +1 food from mountain tiles, +2 food from hill tiles
-Pachacutec: No resistance in captured cities, charismatic trait of Civ IV, roads can be built in half the time normally
Indian Empire: Starts in Caste System by default, starts with writing
-Ashoka: No anarchy, state religion spreads 3 times faster in cities throughout empire, river tiles produce +2 commerce
Japanese Empire: Starts in Mercentalism, triple production of work boats, galleys, and +1 food from tiles that produce more than 3 food
-Tokugawa: All units start with combat 1, city garrison 1, drill 1, and double commerce from internal trade routes
Mongol Empire: Starts with Animal Husbandry, Horseback riding, and the Wheel
-Genghis Khan: All units start with Shock, +2 food from pastures, no terrain movement handicaps unless in another civ's cultural borders
Ottoman Empire: All cities with a different state religion generate 2x the gold, Capital can be moved at will
-Mehmed II: All cities start with wall and a barrack, all units start with city raider 1, +1 culture p/turn in all cities
Persian Empire: -50% maintainance costs, no penalty from distance to palace
-Cyrus the Great: Starts with Free religion, all mounted units receive a 10% withdrawal bonus
Roman Empire: Barbarian cities have no resistance, Cities with under 40% cultural bonus receive 0% defense bonus, all cities start with a barracks and a colosseum
-Caesar Augustus: Farms provide +1 food, can draft once per turn with no unhappiness penalties, all captured cities become 5% more Roman every turn
Russian Empire: +1 hammer bonus on all tiles, no maintainance cost from distance to palace
-Stalin: Starts with police state, capital receives 25% production bonus, can make demands with no diplomatic penalty
Spanish Empire: Galleons available at optics, can remove a religion from a city at a population cost, gunpowder units start with shock and cover
-Isabella: No non-state religion spread unless by choice, no former culture in captured cities
That's as much creativity as I feel like posting at all. Rate/hate/post your own ideas(this).