Well if you add more cities to Russia and so far away from the others, the AI won't handle it well. The faction is already fighting Prussia with one hand tied behind its back as it is. Even just giving them Tbilisi (the capital of the former Kartli-Kakheti turned Georgian Governorate) would probably screw up the faction.
And if Docm were to handle the region with the same attention to detail he's tried to apply everywhere else, then you'd have a buffer zone full of microstates such as Mingrelia, Imereti, Abkhazia, Ganja, Erivan, Karabakh, Shirvan, Shaki, Derbent, Quba and Baku with various fixed alliances or hostilities to represent the military occupation or soft-power exerted by the two major powers. Not to mention the Chechens, Avars and Circassians who would have to be permanently neutral or hostile to both Russia and Persia. In Warband, this would give Persia an ahistorical advantage, as it would have all of its starting cities and lords concentrated on the northern border and would be able to steam-roll these states with impunity while the Russian lords would be spread literally from the top of the map to the bottom.
