Old thread but good topic! My wishes:
(1) Space to ride on main roads. A bike lane would be fine. So would a really wide right lane, like I experienced in southern California.
(2) Traffic lights that sense bicycles, especially at intersections crossing main roads.
(3) Maintenance of infrastructure - including the actual pavement on the roads we share with motor vehicles as well as shoulders/bike lanes/parking lanes, which become a dumping ground for leaves and snow during a good part of the year.