Illinois and I-66
After initially declining to study possible routes for I-66 through southern Illinois, it seems that Illinois and Missouri residents are now hoping to have the route built between I-24 and a new bridge over the Mississippi River at Cape Girardeau.
Kentucky is in the process of a feasibility study to determine the best route for I-66 between Paducah and the Mississippi River near Wickliffe.
More information: Southeast Missourian: Illinois I-66 planners wait on feds (date unknown)