I think a new rise of trusted publishers is more likely than professional information-vetting services/jobs becoming widespread. It's sort-of the same thing, I guess, but with the due diligence up front rather than trying to sort out what's good from the vast sea of information pollution after the fact.
Most really good material is already better found in books (even if ebooks) from real publishers than by trawling the Web, anyway. Even before the LLM apocalypse, the Web has always been rather disappointing at the whole "all the world's knowledge" thing. Great for trivia, great for a few aspects or presentations of a few topics, kinda shit for the rest. AI garbage wrecking the Web doesn't seem like a complete change of the current state of things, but a shift in where exactly the "Web is good for this / Web is not good for this" line falls.