Can you explain your vision of the game you are developing in such detail that another programmer can create it as you envisioned it? No? Then what makes you think an AI can? It might be a competent programmer that can write games. But it's not you so it will not write your game.

If it becomes trivial to develop a game with AI that's great! The only thing that means for programmers is that you think bigger and better and expand the scope of what you hope to achieve.