I kind of disagree with your assertion that AI tools will now descend more directly from a common ancestor. GPT is not terribly general, just a language processor with a few more related tricks thrown it. It is very broad, but also very shallow, and it is not clear if it can become a tool of all trades. We will need a lot of domain-specific tools, that are best developed independently, with some synergies where it makes sense, and GPT won't change that.