They don't care about pushing the industry. They don't care about being courageous. They care about making money.That’s what is pushing people forward. Bold steps. Or if they have not enough courage then just don’t call it biggest UI overhaul in years. It is just a small tweak of already flat design. They basically do a flat design with a more prominent edges.
But that would be not the worst part. The worst part is that even if they still wont bring us anything looking like a new era, they still may screw UX by adding more clicks and taps just to look different. Judging by the new camera UI, which looks great until you realize that clean look is achieved by drop down menu of sort, so one more click when taking adjusting or changing camera features, terrible design.
That said, we have a random leak that doesn't seem to include much at all. Is Apple even claiming this to be a big overhaul? Or is that also from leakers? Either way, let's wait and see what actually comes. I can't imagine that claim being made for round, transparent icons.