I think architecture needs to evolve as well. Up until now the primary audiences were human comprehension and build tools. We may need to have more context embedded into software architecture and make systematic segmentation easier for an LLM to sus out as part of the concerns involved in our designs.

LLM's won't make it on their own because there isn't enough data with their concerns in mind for them to learn from, just a few happy accidents where an LLM can excel in that specific code base.