Its not only FAQ based bots that we intend to remove. It won't serve many purposes. Customers call banks to know about their balances. Or retail Customer care to know the status of order.
Once I saw a chatbot use case where chatbot recommended dresses if we talk to it in a natural way. For example: "I have to go to a Christmas party today " and it handled this...
We are only limited by our thinking on how to create them.