Going back to C++ would be particularly bizarre to me given that AI is also very proficient at verified languages. Not merely typesafe, but languages comprising their own spec languages such as Rocq and Lean.
I predict that in the next decade: (1) the market will understand the difference between a "code writer" and a "spec writer," with (2) the expectation that the latter is overwhelmingly more necessary than the former in an AI-dominated field, and (3) there will emerge more useful and less mathematically specialized formal verification alternatives to Rocq and Lean, and a filling-out of the tooling gap of between "static typing" and "interactive proof assistant," perhaps in the vein of ACSL-like contract annotations, and (4) there will be a subsequent shift in the traditional curriculum for programmers. Since educational change is slow (and spec writing depends on good coding fundamentals anyway), perhaps (4) is a stretch, but I'm more confident in the first three.