I was tickled by the original idea of great, big graphics improvement, but the term "vibrancy improvement" makes my eyes itch. Please tell me it's not going to be a bloomy candyland with oversaturated colours. I was rather hoping for a touch-up like finally fixing the grass textures and some other ugly tiling stuff (nagnagnag!), improving AA, that kind of thing.
Would be nice to have a developer/artist blog teaser on that sometime soonish, like the one about the foliage shader improvements, with a few before/after shots