Using dx11 but playing on extreme settings is a waste as you might as well stay on dx9. Give us optimized versions of the current 64X tessellated geometries (i.e. x32 or x16) and other optimized dx11 features so mid-ish/low-mid range setups can enjoy the dx11 update, push their rigs a bit but not too far that they have to upgrade gear to play at playable frames.
Ultra mode is too big a step up from extreme on dx11, ideally extreme should be something in between what it is now and ultra.