The reality is that it will definitely come, but the technology is nowhere near that required for the number of aircraft in the skies.
Sure, many airliners can do an autoland today and have been able to do so, but imagine having LVPs in Heathrow 365 days a year to ensure safe operations. You wouldn't need 3, more like 6 runways.
The operational envelope would definitely have to reduce drastically to facilitate fully automatic flight. Just look at your aircraft's limitations for autoland. Only 20 kts crosswind, max. 3.15° approach angle, etc. Sure, you could run a Frankfurt to Heathrow flight in a summer without pilots even now with slight modifications (taxi and takeoff mode), but who will get the punters to their summer holiday destination which has an letdown VOR approach to a narrow runway less than 2000m long, preferrably with some CBs and crosswind?