BigDaddy,
if NATS re-located all the the EGPX ATCOs to Swanwick, they would have to shell out a fortune paying them all Band 5 wack.
If I was Deakin, I'd be looking at moving all the Band 5 folk north. Loads of space, helping an impoverished region, AND, a reduction in salaries, (Band5-4), to boot. All in line with the SESAR ANSP cost-reduction programme, - "Tuned in to our customers".
You know it makes sense.