The following is an excerpt from Zahi Hawass' Blog; click the above link to read his post in full:
The Valley of the Kings has only revealed one new discovery since the tomb of King Tut – 84 years later, Otto Schaden found KV63 in front of the young pharaoh’s tomb. Our excavation, however, is proving to be not only the first Egyptian expedition ever to work in the valley, but also one of the most scientifically important. When we started our excavation, we could feel from the beginning that the area was promising.
Needless to say that I am happy for Dr. Hawass that he is finally getting his wish: that an all-Egyptian team may discover another Valley tomb (and how exciting is it to discover a previously unknown name!). There are still many more Valley tombs to unearth I'm sure, so there will be many more chances for all-Egyptian teams to make discoveries.