Work might be finished on New Jersey Transit’s Atlantic City Rail line, but service hasn’t been restored and it’s not clear when that will happen. The line shut down in September for installation of positive train control, the automatic braking system that engages in emergency situations. NJ Transit rail service planners are now evaluating a schedule for restoring regular service to the Atlantic City Rail Line, the Princeton “Dinky” line and others, said spokesman Jim Smith. “We are…