I've just spotted this thread. Firstly, congratulations!
Metro won't be going driverless for at least 30+ years, the current plans for new trains have no driverless features. Most other light rail in the UK is trams, and as such they won't become driverless either, at least not until all the vehicles on the road are automated too. The current plans for Metro are being kept secret, but we've all been asked what we want to see from the trains, drivers have been asked what they want to see in the cab, and then passengers have been asked what they want the saloon to be like. From the rumours, a lot of things wanted are very similar to that of the S Stock in London, but Nexus have a weird desire for trams so who knows what we'll be seeing.
I think the closest we'll get to automation for a good 50 years or so, will be similar to that of CrossRail and the tube lines. Whereby the driver is in the cab and is still fully in charge of the train but the train drives itself for the most part. The DLR is probably the closest we'll get to full automation for a good 30 or so years unless we see a splurge in public transport funding with new systems popping up (which I doubt).
