I get the Arverni or Aedui in Anatolia every so often, though usually the place gets conquered over again, but one time it rebelled to the Arverni after Rome had almost completely conquered their territory and they began expanding from Ankyra. I was the KH and controlled most of the Ionian coast, so it was an interesting battle between hoplitai and celtic units.

also, my Romans almost always head north into Gaul and sometimes their Italian cities get conquered behind them. Rome-in-exile...