I get the feeling that "two models down the line" (so to speak) thousands of people independently just having a laugh with their mates by prompting "produce skynet" will be what does it. The agents have a shared understanding of what's meant by this due to the cultural reference, and the comms infrastructure will be more robust by then, and kick the reasoning / long-term planning capabilities up a notch, and couple t…
So many of those models are probably already aware of the entire lore of skynet and all its details, it is just not considered "actionable information" for any model yet...