I'm really only concerned about the early parts of the mod (first century). It would be neat if Galatian was added as a Celtic culture. A rework of the Anatolian cultures would be amazing! An Anatolian culture group consisting of: Cappadocian, Cilician, Paphlagonian, and maybe Carian or Lydian.
Phrygian and Bithynian should be added to the Eastern Balkan culture group.
Greeks should be in Cyrenaica.
Phoenician added to the map (with or without Punic) with actual Phoenician names lol.
Keep in mind that I can't seem to get Extended Timeline for 1.30 to work, so I have no clue if any of these changes have already been made. These are just some suggestions that I would love to see in game.