The likeliest outcome is the one described in Ezra Klein's recent pod episode on AI - most vocations will be helped by AI, but it will still require an operator to QA the results and solve the bigger problem at hand. AI is not magic. You don't just build it once and walk away. It requires constant effort in care and feeding.
In our case, let's not pretend that React will be around forever. Once the new Hotness in the JS world shows up (and i't very easily distracted by shiny things and cool names), you will need to train the models, all over again.
The pod: https://podcasts.apple.com/us/podcast/is-a-i-the-problem-or-...