The physical extinction of the human race is one possibility.
Even the largest avalanche is triggered by small things.
Note that I am not proposing that AI research be ignored or less funded.
IA is something that is proceeding very naturally, in most cases not even recognized by its developers for what it is.
Sometimes terror and pain are not the best levers; deception, when it works, is the most elegant and the least expensive manipulation of all.
Within thirty years, we will have the technological means to create superhuman intelligence. Shortly after, the human era will be ended.