Personally, I'm much more excited about AI-generated fanfic audiobooks/movies. I already listen mostly to AI-generated audiobooks made from fanfiction, which is not very good yet, but when it can make consistent art and use different voices, it's going to be really exciting. At the rate at which AI is advancing, I give it 5 years tops to do some animations as good as current movie quality, but I think we are going to have very good AI-illustrated and dramatized audiobooks in a couple of years.

I'm not particularly enthusiastic about the show, but to compete with it, AI-generated stuff will need to fix the hallucination problem that current models have. They can't produce long form, coherent writing yet.

My problem with AI Generated Fiction is my problem with most fanfiction -- after coming on twenty years since the end of the series (Deathly Hallows came out in 2007) there are very few original fanfiction ideas left, and most of it is (I am sad to say) knock off copies off stuff that already exists.

And given that AI cannot write original stuff because it doesn't have the ability to create, just copy and reorganise and regurgitate, then it will just reproduce what exists.

There are very few original fanfics being produced now and AI isn't going to help with that.