Strategy for building native and reigonal units?

[konny]

One day it will be fully incorporated into the Makedonian Kingdom, and I will still recruit Kuarothoroi there. They will be as hellenized then as they are now.

Setting aside the fact that Makedonia is able to draft the Hoplites militia in Thessalia, the Kuarothoroi are a good example: A fully Hellenized nobility in those lands would no longer wear trousers and fight in their traditional way. They would have appeared as Hetairoi or Hypaspists on the battlefield.

The problem that we have with the RTW enginge is that we cannot plausible create a gradual change in the population of a given region after so and so many years of foreign occupation. That way the population is frozen at spring 272 BC. Would the game start in 372 BC, for example, there wouldn't be any Gauls in Galatia or Odrysai; and there would also be no way of getting them there. Wild migration scenarios are simply not possible in EB, like following the path of the Goths with the Sweboz.

RTW vanilla went the exact opposite way, assuming that once you conquer a province the entire native population is displaced and the province is completly settled by your own people the very next day. The game engine does not allow for a middle way because it is not possible, for example, to tie recruitement to cultural penality or the turns passed since conquest or since a specific building was errected.