Sounds like a cool idea although I found the barabus cementery a bit to european for my tastes since the nord dont use graveyards, they use barrows to entomb their dead, and the Imperials seem to follow the Classic roman practice of burning their dead (although they do have standard graveyard in plain old Oblivion) I look foward to it
Indeed, I agree 100%, thus the Barabus set will only be utilized for the Imperial settlements, where the Nordic settlement of Dagon Fel will be granted some Barrows in the area instead.
As I really have no idea as to how the other races handle their dead, I have no way to integrate them into this (not that their are any towns predominant in any culture other than Nordic, Imperial, and Dunmer in this game).
But, yes, anyhow, by the time this is done, Tombs, Barrows, and Cemeteries will all have their fair usage across the game.