After years of construction, with traffic-cone obstacle courses, tire-bursting potholes and white-knuckle steering along ever-shifting lanes, it might stand that the coming tolls for the rebuilt Interstate 4 would also bring the same level of dread. But drivers might be in for a pleasant surprise. “We actually don’t know yet how much the tolls are going to be,” said Jared Perdue, the state’s transportation secretary for Central Florida. “There are a lot of unknowns and a lot of assumptions.” But while final toll calculations are still underway, Perdue’s agency estimated recently that the I-4 toll lanes will now not be...