I said something along those lines when we were there: Who knows what amazing artifacts have yet to be uncovered... We are planning to go back some day (hope Italy survives!)
The Villa of the Papyri in Herculaneum belonged to one of Julius C’s fathers in law at one time; by the time the place got buried it was in the same family I think (Piso) and had a library of scrolls, apparently filled with nothing but philosophy texts. Now there’s speculation that there’s another storey to the house, and that, perhaps, there’s another room filled with scrolls (hopefully a little more interesting). I’m a doubter, but it’s something else that we’re not going to find out for a long time.
Ideally, some really deep pockets would come along, pay to build an all-new town off the site of the ancient Herculaneum, move everyone into their new places, and then clear off the modern town to get at the ancient town in ernest. I’m not optimistic. :’)