So far no news about Skyrim http://www.eurogamer.net/expo/whats-on, but in the 'Supported by' section http://www.eurogamer.net/expo/, Bethesda Softworks is included, which would suggest they would have
some sort of involvement however small. Only thing is; Bethesda has more than one branch right? In that case i'm not sure which one is the one working on Skyrim.
And if they don't have anything special to show be September, you should either be very worried about development, or excited for the surprise in November!