A minor point 'Ear-OTG', the "new" Prestwick Oceanic Area Control Centre already exists and is simply awaiting the purchase of new kit to become operational - it is referred to locally as "the brown hut" and is an ugly addition to the side of the existing Ops room.
NSC or "New Prestwick Centre", (Latest attempt to be 'PC' about the fact that it covers both Scottish, N.Irish and English airspace), will not officially be home to Oceanic - provided of course the business case for 'NPC' can be made at all in light of Single European Sky proposals seeking to reduce the overall number of centres.
Looks like NATS could end up with a 'Get out of Jail Free' card in the form of the EC for eventually pulling the plug on 'NPC'!