You can already find plenty of self published work on ebook stores that are definitely not written by AI. I expect it won’t be long before there’s a scandal where a well known author is able to push through a mostly AI written book on the strength of their name.

A completely AI written work going through the traditional publishing process seems unlikely, at least for a while. LLMs are great at producing coherent language, but there’s a lot more to writing a story. AI research follows cycles where new techniques produce eye opening achievements, followed by lulls as their limitations are better understood. We’re due for another lull, for better or worse.