It is obvious that there would have been a successor and one recognized by Alexander himself, although it remains to be seen whether the boy would have lived long enough to succeed to his father. It would have been logical and more practical to rule Alexander’s empire from Babylon, but I doubt any of his generals saw it that way. For them
Macedonia was still their homeland with Pella was its heart.
At least Arrhideus was redundant. But how safe would Roxane and her young son have been? She is accused of having murdered Alexander’s latest wives, the two daughters of King Darius, poisoned apparently with the help of Perdiccas. Next question is, would Perdiccas have dared to assist Roxane if Craterus had been controlling
? Would or could Roxane have murdered the two princesses on her own? Nothing is certain, of course. Macedonia
Another important factor is that with Craterus firmly installed in
, Cassander had little or no chance to spread his wings. This means that the murders of Alexander IV, Roxane, Heracles, Barsine, and Olympias would not have taken place. Even Arrhideus may have come out alive of the Successors’ War and there would have been no need for him to marry Adea/Eurydice either. Macedonia
In the end, and to cut my speculations short, the Successors would have been fighting all the same, although the odds were slightly different since Cassander had not come to power and Alexander IV might have lived long enough to become the next Great King of Asia – who knows…