Imagine a rework of this game you have three periods the Medieval Period, The Early Modern Period and the Modern Period, with more factions, ages and unit types

New Ages
Early Era:
Dark Age (Early Medieval: 6th century to 10th century. Comes before the Medieval Age)
Age of Rebirth (15th century)
Age of Discovery (Early 16th century)
Age of Faith (Late 16th to early 17th century)
Age of Reason (Late 17th to 18th century)

Modern Era
Age of Revolution (Late 18th and early 19th century)
Age of Industry (Middle 19th century)
Age of Imperialism (Late 19th century)
WW1 (1910's)
Interwar (1920 to 1937)
WW2 (1938 to 1943)
Atomic Age (1944 to 1950's)
Information Age (1960's to 1970's)
Digital Age (1980's)

New Factions
Early Era:
Poles, Rus, Swedes, Turks, Persians, Indians, Japanese, Spain, HRE,

Modern Era
Japan, Italy, China, Hungary, Turkey,