I have always been of the opinion that the Psalm 83 war will come before the Ezekiel 38/39 war. If this is the case then Iran should not be in the war that is about to break upon Israel, as Iran is not mentioned in Psalm 83.
I agree Iran’s proxies will fight, but not Iran herself. Maybe, therefore, the naval fleets building up in the Mediterranean will be sufficient to keep Iran out of this war but allow her proxies to go full on with Israel?
There are several points that argue against the possibility of this war being the one foretold in Ezekiel 38-39. Israel is not an unsuspecting people living in peace as Ezekiel 38:11 requires.
Iran is one of the chief aggressors against Israel in Ezekiel 38-39, but in the event of war now Israel would likely be attacking Iran.
Then there’s the fact that none of Israel’s next door neighbors appear in Ezekiel 38-39, but as you said all will fight as Iran’s surrogates in this one. I think it’s more likely we’ll soon be seeing the battles of Psalm 83 and Isaiah 17 not Ezekiel 38.