Discuss how the Parthian Empire could have extended beyond its OTL parameters. Maybe retaining the temporary conquests that were made in Anatolia and the Levantine territories during the 30's BCE.
Does it have to be a unified Parthian Empire, or can it be separate empires.
It was separate empires in many ways IOTL.
It was a decentralized federation, I know. I was possing the question if it also extended into Anatolia, Syria, Judea etc. I reckon that places like Pontus, Bithynia, Galatia, and Judea would become autonomous client states, or perhaps the House of Suren may establish themselves in Anatolia, and adopt the title of Shahannashah in opposition to the Arsacids.