Quite an interesting turn of events, if your theory of this being a US-Turkish war is true it would mean a lot. It would mean Turkey is trying to eliminate Iran as an opponent so that it can be the regional power, and that relations are not as good as it seems compared to the Rouhani-Erdogan public relations.
We shall see how this plays out, I wonder if Iran will assist Armenia in any way. I'll say right now, the possible defeat of Armenia will not benefit Iran and may be very detrimental. We shall also see if and how the Arab states with bad relations with Turkey react towards the situation.