CTC is the rumour on the street. NATS (if they're clever will offload LHR CTB) for a large amount of cash and if they need to, locate admin/support to a cheaper site nearby. Swanwick doesn't have the space for CATC and I hear they are going to enlarge CTC. BUT....
1. When have NATS done what makes sense?
And....
2. What do I know, I'm just a grunt!