We can but hope
Remember though, this is Windows - they'll be a millions hacks and themes to allow you to change the look and feel. I'd be shocked if someone didn't put out a transparency 'fix' for the RTM.
Best one I saw for the DP build was one that let you put a bitmap on the start screen - I had a panorama of a lake which looked great as you scrolled Doesn't work in the CP tho
http://www.pbase.com/cindyd/image/41462459/original
I guess I'll wait and see if I like the new theme or not.