Zooker,
I think I get out and around the company quite a bit due to the various activities I'm involved in, so I've got a pretty good idea of most of the future concepts NATS are working on at different levels.
If you turned up with that aim at my unit, I'd say well done for joining us in the 21st century, that's what we've been working on for years!
The ideal would be to eliminate holding at the holding point before departure, to have aircraft taxi to the holding area in their departure order, straight on the the runway and take off. Doesn't work at the moment, as we still need the same buffer mentioned above to get the most use of the runway. But that doesn't mean we're not working on it, to minimise the reasons that create the requirement for that buffer.