This thread has an interesting question which is hard to answer without knowing fully the possibilities of the M2TW engine. Since the poor AI is hardcoded, I have already asked CA for the AI source code or ways to modify it, but I have a feeling that the universe will suffer heat death before they will share it.

Unfortunately I can't play RTW with anything else than with the Romani or when really stretching with Carthage or successor states. It just doesn't feel right to build an empire with a barbarian faction, which to my knowledge practically all collapsed after their charismatic and successful leader died (huns, mongols etc.). Important thing about Rome is that it lasted. So I would like to see a more challenging campaign for Romani in EBII. I tried adding money for the AI factions, but it didn't appear to have much impact.

The gameplay details and leader events of EB I were very nice. More storyline type events for leaders would be nice so that the missions would have more depth than just capture settlement or go to a Spartan school etc.