I don't believe ATC will ever be fully computerised within my lifetime, however I think the decisions taken in the next 50 years or so may decide wether or not it will be fully computerised at some stage in the future, that might be for a different topic though.
There is also another thing to note, we need to retain the vectoring skills of the controllers, that I think we all agree on? But we need to ensure this applies both to the area sectors and the approach controllers. If you provide an airport approach with point merge then that by definition requires no vectoring. What are we going to do then? Have every 10 aircraft vectored to keep currency (thereby reducing capacity)? Vector aircraft on tuesdays only?
If we decide not to implement point merge (or something similar) then one of the big
PR points with the project is lost, and allegedly (even though I have never heard a pilot say this, only bean-counters and
PR people) a lot of the potential fuel savings will also be lost.