One should never say never but I can't imagine any technology which could read a cuneiform tablet underground even if it develops to the point where it can reliably find them.
I agree with Frank that it will save a lot of pointless digging in the wrong spot. There is not an either/or issue. Find an interesting anomaly and then dig it up and see what it is you have.
Something is wrong here. War, disease, death, destruction, hunger, filth, poverty, torture, crime, corruption, and the Ice Capades. Something is definitely wrong. This is not good work. If this is the best God can do, I am not impressed.
-- George Carlin