While there might be new stuff, these business's are currently the ones funding AI - if they all get wiped or substantially reduced, then there will be less ai revenue then there is current tech revenue - potentially at reduced margins.
I think a lot of SaaS tools have a great future. But they will require less engineers to build.
1 - People build more and more complex implementations, and your "working mess" software DOES still need time to maintain it, is unstable, and they will still want something that "just works" so they hand it off to another person / group. (This would be AI effectively creating "more software + jobs"
2 - People build more and more complex implementations, and AI no longer creates a "working mess" as it improves, it creates "working software" that does not need time to maintain it, is stable, and they do not need to hand it off to another person / group.
I think it's more likely that scenario 1 is going to be the case. I've seen the things people are building around my company. They are enthused, creative, and useful - but need a ton of work, and are continuing on the path of "usable mess", and are now getting fatigue because they need to maintain the tooling they built...
It’s been sort of funny to watch the tech industry realize that the main thing being disrupted by AI is tech itself.