Once it’s active (it isn’t yet but part of my reason for posting this is to remember to go back and look at it) the database will be located here. The project is funded by the Arts and Humanities Research Council and headed by R.R.R. Smith and Bryan Ward-Perkins.
This looks like it might be pretty good. You can read more about it at the Last Statues of Antiquity Project page. The project will focus on new statuary, not renovation and appears to have the boundaries of the Roman Empire as its focus (though I couldn’t find this flatly stated – for example, based on the project descriptions, including research method, I can’t exclude the possibility that Roman-influenced statuary found outside the Empire or statuary created within the Empire but exported to other regions may be included).
Statuary and inscriptions are areas I’m just beginning to look at. The whole concept of the role public acclamation and image making played in governance of the later Roman Empire seems pretty important to me, at least in some regions. This project and database may be very useful in looking at this, particularly since the project goes beyond simply listing statues and inscriptions and will include contemporary literary references/copying as well as modern analyses.