Someone who is claiming the the Iranina films are carrying the Tarkovskyist baton really know jack-shit about cinema, and is probably using some totally misinformed Marxist alterna-anti-Hollywood tract that has nothing to do with the artistic fact.
I would say the Iranians are basically running with the Nouvelle Vauge torch more than anything, made even more apparent that the French have long supported Iran during the years of the Shah and after the Lunatic Islamic revolution. Kiorastami's Godard influence becomes more apparent in each film he makes, it becomes beyond a joke, and pretty much 'outs' and deflates the whole hoo-haa relating the the Iranian cinemah-cannon
I would say the Turkish are chewing on the 'tarkovsky' influence more than anyone, check out Nuri Bilge Ceylan's sublime 'Uzak' for point-in-fact. Also the Russians are pomo'ing the Tarkovsky shtick in the recent Russian film 'the return' - which looks like a mirror of TK's 'the mirror'.