West Coast:
All of that is good and well and would have positive implications for operators but wouldn't increase the efficiency of the airport given the opposite direction traffic scenarios. We achieve lower mins via the existence of an FAA blessed balked landing procedure. It's proprietary, so I can't post it.
Alas, not many biz jets can qualify for RNP AR. Those that can often are unwilling to go through all the expense and hassles imposed by the FAA.
As to your balk landing procedure I have a fairly good idea, having seen Air Wisconsin's of yesteryear.