Jeez, chill Chev.
Airports will be doing all their training on simulators at the NATS [NSL] Centre of Excellence which is located at..... HURN.
Area boys and girls will do Basic Course at Hurn followed by an initial radar module at Hurn, then poke off to Prestwick or Swanwick to complete their rating training. Anyone going NSL and the occasional TC Approach will stay at Hurn and do about the same as they do now before they pitch up in the towers on your licenses.
To answer the original question, training will take about the same time as before, just at a different location for Area.