Its going to take some time to update to the new formats -> decoding new data structures, block types, its going to take a very long time to update the exporters before anyone can even start doing anything, just look at the time frames between:
Morrowind to Oblivion (nearly a full year just to get animation data decoded along with most of the basic data structures -> not exactly a quick process)
and
Oblivion to FO3 (Took about 8-9 Months for most of the basic stuff, but the change was not that great from Ob to FO3/FONV)
for an idea of the time scales that it will take before anyone is able to start to do any real alteration of the Skyrim assets, there is also the fact that there are quite alot of the entries that no one took the time to decode or some of the more annoying decodes that never made any sense so they got left as unknowns.
Such time will not pass without of any other results, modeling just one side of modding there is also other way to mod until tool will be available.
But I must say Oblivion has much faster progress in mesh modding then Morrowind has even with official exporter.