My guess is that after GI's exclusive Skyrim coverage ends, and other publications start releasing their own snippets, Bethesda will begin to release some of their own official information about the game on the website. Afterwards they'll hopefully bring back the old content and rework it into the context of the new site design. Indeed, I really miss some of the goodies that were on there, like the Morrowind-era developer diaries.
Hey, I realized! The "limited time" Arena/Daggerfall downloads that were up for 4+ years finally DID come to an end!