You think you can make another "What If?" scenario featuring a new way of the classical world? Maybe let the Romans start with one or two cities in Southern Italy while Hannibal and Carthage start with both Rome and Carthage under their control. Maybe the babylonians could rebel aginst the Selekvids/Persians and start to form the Third Babylonian Empire. And what if The Minoans still lived at the time, engaging in a war aginst the Pelloponnesian Allies (Sparta) and the Delian League (Athens), which here may have formed a defencive pact and be worlds best friends. And what happened to Egypt and Macedon... was the Celts really just a pack of barbarian tribes?
This is all just ideas, and you have to decide yourself if you want listen to them or not...