It's an interesting but complicated topic. Most of this is not so much a reflection on what I hope happens, but how I see what could be the state of things now, and where it might be headed:
I think of this problem a little more broadly than that, as it's difficult to isolate AI's the disruption to the tickling content world from AI's disruption to the general world of creative content (movies, books, music, art, etc.). factors such as political dynamics and legal developments around the topic will affect how such AI tools are perceived going forward (Will governments try to control the industry? Is the singularity around the corner? How does AI fit into copyright law, and will copyright law be revisited? Etc.) No one has definitive answers to those questions yet, but my point is that the world at large is looking at AI from the angle of, among many other angles, increasing worry about threat to industry, livelihood, and stability. So, while they are not looking at it from a tickling content creation perspective, likely most solutions, attempted solutions, or even unattempted solutions for that wider problem will have implications in the tickling content world as well. But people are also looking at it for all its benefits too, and it's possible that economic disruptions will happen smoother than some expect. It could just be that many industries are eaten up by the AI industry, and that AI is just how you make content now, much like the typewriters, traditional film equipment, and making your own paint have greatly faded out of wide adoption.
For better or worse, let's assume that we're going to keep moving into a world where AI-generated content is better and better, and is generally acceptable from a legal perspective. In that case, I think that traditional (real) productions are likely not competitive in terms of business viability. I think there would still be room for people interested in traditional content that need to know it's real. But if future AI can generate content that looks completely real with no ability to tell whether it is or not, people who value real vs generated content will probably be forced into a corner. And if AI can generate such content with better scenarios and qualities on demand, producers will adopt the tool instead. If that happens, it will inject a ton of supply into the market and almost no one will make money from it. Depending upon how available that quality of generation technology becomes, producers themselves may be a thing of the past (For example, in the case where anyone can generate whatever content they want by simply having an AI service subscription).
Pulling back from the AI-specific element for a minute, I'd guess that the tickling content production domain is suffering more than ever even without AI disruption. Copyright infringement and content theft is rampant. There is a lot of content that still gets produced, but a lot of stores go down all the time because of copyright and theft issues. People illegally upload clips to adult content platforms at faster rates than those sites and producers can manage their discovery and take down. In some ways, new legislation in several US states requiring age verification before accessing such sites has reduced availability of pirated content, though that also affects sites such as clips4sale, likely greatly impacting profitability and incentive for the many producers that use those platforms to distribute their content. So there are many pre-existing cracks in the tickling content domain, and I think even the early stages of AI will act like a wedge to dismantle it from there.