Maybe. I suspect it will be much better than last time.

Processing power is much better now than in 2006. Back then it was about having some blurry transparency and lots of light beams and lens flares and shit, because it was easy to layer that over stuff. This is going to be more about refraction at the edges and clarity in the centers, with frosted looks as background when needed.

I am hopeful, it looked mostly good in the WWDC video, with only a few examples of poor legibility that hopefully will be ironed out.

I’m personally ready to move on from the flat look as long as it remains cleaner than Frutiger Aero. I miss having depth in my UI.