I may skip iOS 7. It looks like unfinished project (it is but I bet the UI and water coloring thing won’t be any different than the beta).
The color selections are horrible. The dock is simply fugly.
IMHO, skeumorphism has its place. iOS 7 does not have to be all that different to iOS 6 which is wildly successful.
Some Apple’s apps do have too much skeumorphism, they just need to be toned down a bit.
Third party apps have huge problems. Most of them are accustomed to iOS 6 or lower. And most of them will look out of place on iOS 7.
My bet is, there will be a more significant number of people who will be staying with iOS 6.