BOAC:
However, taking your 4) (Airblue Islamabad) - with the technology that would permit an 'automatic' CTL, surely it would be more logical to simply produce an 'automatic' approach to R12? The only time a CTL would then be required would be in the event of a very late runway change since there would otherwise be no need for an approach at all on R30.
"...surely it would be more logical..." indeed it would because it would be safer, much safer than any type of low-altitude, level flight CTL maneuver.