As far as I know, there was no physical damage to the city after Umbriel flew by and killed each and every individual there. Perhaps it has been repopulated since the slaughter? I imagine that the Hist proper made it a priority to kill off the Lilmoth Hist after what it did, but would Argonians still return to the city and repopulate it? Maybe some number of the looters who surely showed up for the easy pickings settled down in the unoccupied villas?
I want rampant speculation, here, but if there's a mention in Skyrim that serves as evidence one way or another (doubtful), do bring it up.