So the things people hate Java for will make a big comeback then? Hexagonal architecture with domain driven design,a big fetish for inversion of control, so the LLM never needs to figure out how the system works, it just magically does. And errors have just the right amount of stack trace, this being 500++ lines

A lot of old school "java-ish" paradigms are going to come back with AI for the same reason people used them with Java back in the day - they put golden handcuffs on implementors, which is a bad tradeoff for competent, agile humans but a very good tradeoff for sometimes off the rails agents. This includes waterfall, spec driven development, front loaded planning, extensive automated testing suites, formal verification, etc.