Here is a list of units in RTW that I believe must be omitted from the game to free up space for newer units.. if any of you disagree or think I left out any units please post below

Arcani
Incendiary Pigs
Wardogs
Desert Axemen
Nile Spearmen
Pharaoh's Guard
Pharaoh's Bowmen
Desert Cavalry
Nile Cavalry
Egyptian Chariots
Egyptian Cavalry General
Egyptian Chariot General
Egyptian Chariot Archers
Onagers
Heavy Onagers
Ballistas
Repeating Ballistas
Scorpions
Druids
Screeching Women
Beserkers
Night Raiders
Head Hurlers
Head Hunting Maidens
Scythian Noble Women
Bull Warriors

Also I believe Peasants and Gladiators should be for Rebels only (for revolts)