I don't know what the situation is regarding computers replacing humans, but I was told (by a computer company owner) in 1971 (when I stared my ATC career), that I was making the wrong choice & would shortly be redundant !
I subsequently did 37 years in ATC.
A friend of mine was a radio operator at Shanwick Oceanic & he was told the same thing about his profession. He has now moved on to be the boss at Shanwick after about 30 years as a radio operator !
Of course, computerization is, perhaps, a lot more imminent now but, based on my experiences, there would seem to be human opportunities in ATC for a long time yet.