You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
So what would be the effects of Alexander dying pretty close to the time he took the throne? Say he get thrown from his horse in the chaos following the assassination of his dad and breaks his neck in the fall. What happens to the Macedonian state and lacking his campaigns (and the state his father built likely in total chaos)?