I too have heard rumours of the college possibly moving to Whiteley. Not really sure how much truth their really is in this yet, but realistically it isn't going to make a huge difference - it's only about 30 miles away from Hurn and I doubt that if such a move did occur it would have anything less than a positive effect on NATS training and recruitment.
Other than the fact that there's next to no accommodation in Whiteley for someone on a TATC's wage, you'd be trying to get into Whiteley at the worst time and out again and there's next to no public transport.
They said the college was moving when I was there in 2004 and it still hasn't so I wouldn't get too concerned