I doubt that is where the most advertising value on AI platforms will be created. Text as a medium has never been less relevant in a multi media digital world.

I can think of something like people generating a short video and some of the frames innocently containing brand placements. If people can share AI generations and these creations receive some semblance of popularity, that's where you will find advertisers. Most of the digital ad dollar value is created around social platforms. This recipe for success is already proven.