IOTL, the powerful Thessalian tyrant Jason of Pherae, who may have had pan-Hellenic ambitions and ideals, was assassinated in 370 BC and replaced with his largely incompetent son Alexander, who was eventually overthrown by the Thebans. What if Jason had not been assassinated? He had a powerful army and seems to have been a proto-Philip of Macedon. Could he have unified Greece? Would he?