Before Alexander the Great died he had ordered Nearchus to prepare a fleet and army in preparation for the invasion of Arabia. However he died before the conquest can take place and the effort was called off. But, what if he lived just long enough for the attack to take place, while dying shortly afterwards? Would Arabia become a fourth Diadochi Successor state or just become part of the Seluecid Empire? And who will be the leader? Nearchus?
Any thoughts?