I've found a very recent (4th January) photo of the excavations in the central area by KV62. I've contacted the photographer, alchhemy9 (aka Ian Emery I believe), and requested permission to post it here, but in the meantime you can see it here. There's an even higher resolution version there if you want to study it in detail.
This area has moved beyond being a small sondage and is now a full excavation. I'd guess it's about 60' long by 20' wide, running parellel to the main path. The photo is exciting because it show clear walls - probably at least one ancient hut, perhaps more. This is no empty trench. It also shows clearly that the valley floor used to be considerably lower: the present day path is about 20' - 25' feet above the floor of the hut.
So this is not an emptry trench. What is more intriguing though is the clear entrance to what can only be a described as a cave at one end of the trench. Whether this is a natural or man-made feature, and how deep it might be is impossible to tell.
Exciting or what! Is this KV66?