Well, our hero Alex didn’t really have much time to live by this time. In our timeline, after Alexander dies, his generals divide the empire, and they fight for control in the wars of the Diadochi. The Ptolemaic dynasty became powerful in Egypt, while the Sassanids took over Persia and beyond. Greece was a shadow of itself. In this alternate timeline, several things change. First, Alexander’s army would be in the greater India-Bactria region. In our real timeline, it was further west. This would mean that Hellenistic power would be concentrated in India, Pakistan, and Afghanistan. But, what must be understood, was that Alexander’s dynasty after his father, Phillip, was a one hit wonder. Alex expended massive resources carving out his empire. It was his cultural appropriation that brought it too far. By marrying a relatively foreign woman, Alexander tarnished his dynasty’s legitimacy. Meanwhile, his heir was on the other side of the empire. Alexander IV, as he was known, would at best be the lord of a small Macedonian rump state, robbed of its army, which now was controlled by several generals, located in India and Bactria. The treasury would be weak from Alexander’s campaigns and the empire’s civil war. However, he wouldn’t be treated as a joke by the Diadochi of this alternate timeline. After all, his blood was of Alexander’s, giving him added legitimacy. Some would attempt to gain his favor. Therefore, he would perhaps expand his territory to the Bosphorus, but not much further, and if he did gain additional territory, he would do so by becoming essentially a puppet of the Diadochi. Speaking of the Diadochi, they would form several powerful dynasties in India and Bactria, which would last perhaps until about 50 b.c., if we assume that they would fall at around the same time as they did in our current timeline. Perhaps the modern influences of this would be to slightly Hellenize the Indian and Afghan cultures. Also, some governing structures and succession laws of the West would be brought to India.