Potential film: Indiana Jones X

I am reading Classics: A Very Short Introduction by Mary Beard. (I have heard of her from the telly before I realise she wrote books.) She said that archaeologist no longer dig sites and look for Temples. It seems there was more to be found by just marking out the sites and observing and walking around the sites. I think it is now possible for Harrison Ford to continue this franchise until he is aged and wheelchair bound.