The operational benefits of future 'digital ATC' tools should be obvious.
The ability to display surveillance data on to a visual picture, perhaps via a HUD or similar; the ability to use IR and other electro-optical instruments to give a near-daytime visual picture in darkness or LVP; the ability to provide extended safety nets such as preventing conflicting clearances, warning of stop bar overruns, route deviations etc; the ability for cameras to contribute surveillance data into the combined surveillance picture; integration of voice-recognition etc.
Large amounts of data on each movement, integrated with intention and routing (both air and ground) will enable far more stable departure sequences.
Yes, it's all very difficult to get right. Yes, it will be a long time before things like the above operate seamlessly in a highly pressured environment, but it is all coming.
Whether for the right reasons or not, it's where the industry is headed. Do people really expect ATC technical development to stop as we are today?