A bit of back ground info. London LARS is operated by NSL from Farnborough under a contract to NERL for 3 years. As I understand it, they plan is to bring London LARS 'in-house' after the contract expires, but this could be undertaken from the CTC?
NERL is considering the provision of ATSOCAS above FL100 from the CTC covering England and Wales, so the addition of London LARS would would seem a tidy fit. The ATCOs involved with this would also land the London TMA traffic if Swanwick was nuked/suffers act of terrorism/roof collapses (I am not joking)!
And yes the CTC can be configured to provide the services mentioned above.
With the introduction of P-RNAV for both Luton and Stansted in 2010, or is it now 2012? Both units banding can be scaled back to minimum as the function will be mostly monitoring and not vectoring. Only joking about the banding of course and the dumbing down of the job! P-RNAV then comes 2-3 years later for Gatwick, Heathrow and Thames. By then the whole unit will be Band 1 as P-RNAV is NATS saviour! Personally, I am not convinced!