The way I see it, there will always be a layer in the corporate organization where someone has to interact with the machine. The transitioning layer from humans to AIs. This is true no matter how high up the hierarchy you replace the humans, be it the engineers layer, the engineering managers, or even their managers.
Given the above, it feels reasonable to believe that whatever title that person has—who is responsible for converting human management's ideas into prompts (or whatever the future has the text prompts replaced by)—that person will do a better job if they have a high degree of technical competence. That is to say, I believe most companies will still want and benefit if that/those employees are engineers. Converting non-technical CEO fever dreams and ambitions into strict technical specifications and prompts.
What this means for us, our careers, or Anthropic's marketing department, I cannot say.