A "very flat" OSXI?

Hi. Here's an article talking about how iOS 7 will have a "flat" redesign.

http://www.macrumors.com/2013/04/29/details-on-jony-ives-very-very-flat-design-for-ios-7/

The big question now is whether or not OSXI will get the same treatment (OS 11 or whatever comes after OSX.9 since OSX.9 is not rumored to have significant upgrades in the UI).

Thoughts?