Back in 2002 and 2003 there was a lot of talk about analog synthesis being the "next new thing" to close the productivity gap between analog and digital designers. Well, I hope you didn't hold your breath for this!
That promise failed mostly because analog design was still a custom design challenge, relying on innovation to provide differentiation in the final application. Standardizing analog design, or constraining the design to a fixed set of rules, never worked in reality, and innovation was squashed in the process.