The quick side-by-side images here (note that the third image has the new crap on the left instead of the right) suggest that Apple has thrown out everything they might ever have known about accessibility. Tiny! Gray! Low-saturation! Low-contrast! The weather image is particularly hilarious, with the ever-so-thin white font on a light background.
Not that the old one was any great shakes when it came to font size, contrast, and color-deficiency-awareness, but they thought this was good enough to show off to the world, so it’s unlikely they’re going to make drastic changes before release.