The people over at the Unofficial Elder Scrolls Pages (you know, uesp.net) just started hosting the wikis for Fallout 4, Skyrim, Oblivion and Fallout3/NV.
There are a few exciting things still happening in the Oblivion world, although at a smaller pace. The probably most exciting one: With the last release, xOBSE got OnKeyEvent and OnControlEvent event handlers!