Youtube? Someone's going to make a tiktok like quick-feedback thing of purely generated stuff that learns what you like and tailors the generations to you, and, despite Google owning Youtube, OpenAI looks far closer to it than them.
Creating realistic video isn't hard even today, you can just do it on your phone and creating hours, hours of cat/dog videos. The hard part is to find a story to make it interesting. It could be possible in the future, like automatic film making, from script to realization, but that doesn't make YouTube's business go away either.
If those videos aren't hosted on YouTube.
But this time, Google is finally showing their war face instead of not trying hard to compete against Microsoft and OpenAI.