All that 100x code will be thrown out rather than debugged. What's more likely to come is the age of disposable code.
I took on a contract recently to fix up an AI-generated SaaS, I was low-key impressed with the consistency and general quality and structure, but what was missing... uploading files, platform registrations and payouts, payments, booking management, notifications, administrative tools, refunds, proof-of-service and dispute resolution, they wanted a small-scale AirBnb-like service and AI had built them a UI showing mock listings and a skeleton API. Whole project ended up in the trash when they realized how much work was left.