DR UK
I am aware that it does not effect departures for 09L, but alas if & when easterly departures start, thats then it will awaken those in the North East quarter to noise not heard before. Atlantic departures may (?) require a left turn to head West.
As to a decision, I would only suggest that it would be easy to bury this with the R3 decision. However what work is required to allow ops, ie noise baffles and taxiways etc would have to destroyed again to allow aircraft to reach R3.