So when are they going to figure out what the airplane folk got a long time ago? Cover or hide those wheels. Forget faster tread. A full faring is faster. (For a brief time, planes with fixed landing gear and teardrop bubbles over the wheels were popular. Then it was deemed better to hide them entirely inside the wing or fuselage when not in use despite the added weight and complexity.
I won't buy a fully faired bike. Just bringing this up to point out that optimizing tire tread is going after the small stuff.