I really don't like the new iOS design that came with iOS7. It simply sucks. It feels half-assed, because they removed the alpha layer from the icon while leaving the same general rounded shape in. The most egregious offender is safari:
The new icon looks horrible. The old one was so good.
The second issue is that stupid parallax effect when opening apps. The old animation was fine. The new one is disorienting for no good reason. And correct me if I'm wrong, but iOS7 and onwards didn't actually bring any performance improvements over iOS6, despite having simpler designs.
Should Apple one day allow people to revert to Aqua? Either officially or by way of allowing user modification similar to how they allow 3rd party keyboards now? Will they ever?

The new icon looks horrible. The old one was so good.
The second issue is that stupid parallax effect when opening apps. The old animation was fine. The new one is disorienting for no good reason. And correct me if I'm wrong, but iOS7 and onwards didn't actually bring any performance improvements over iOS6, despite having simpler designs.
Should Apple one day allow people to revert to Aqua? Either officially or by way of allowing user modification similar to how they allow 3rd party keyboards now? Will they ever?