Of course, eventually AI's will probably be able to write stories of their own. Will this put humans out of business? Heh. What about AI's stealing the ideas humans input and creating their own stories from these, maybe even sabotaging their human clients? Any bets?
With the backing of other artists, editors and writerly sorts, writers will unite in writer's guilds to lock wanton AI out of business. These guilds will use any miniscule opportunity to sue the AI (and their operators) for plagiarism, thus making the AI writing market so hazardous that few entrepreneurs would wish to venture into it.
Alternatively all creative thinking will be outsourced to the machines and we will be reduced to nothing but mindless consumers. My two cents