We can use signed normalmap textures with ARB_texture_snorm and ARB_texture_compression_rgtc extensions. No more ugly "*2.0-1.0" in shaders for DX10 level cards, but we should do it for legacy cards.
ARB_texture_multisample allows us to implement multisampled deferred effects such as light scattering and SSAO.
ARB_draw_elements_base_vertex great-great-great, but why only now?
