The only map on that page includes Aramaean, Luwian, and Urartian territories within the Empire, with no real indication of core territory as opposed to conquests. Plus, it's about seven hundred years later than I'm looking for. (That's probably my fault, though, since "Iron Age" is pretty vague, after all.)
Seven hundred years the other way.Seven hundred years later... so after the Roman Empire falls? Well basically the same area except some of the coastal Mediterranean area would speak Latin or Greek, and the southeastern area and Caspian coast would speak Persian. And throughout the entire area of Armenia the rich would speak Persian or Latin.
I was going to respond with a simple Urartian, but then I noticed that the article describes its replacement by Armenian-speakers. However, that's still later than I'm looking for. Where did that language come from?