I hope so. But so far, most of the proposals seem to involve bolting something on the outside of the black box of the LLM itself.
If medium-sized language models can be made hallucination-free, we'll see more applications. A base language model that has most of the language but doesn't try to contain all human knowledge, plus a special purpose model for the task at hand, would be very useful if reliable. That's what you need for car controls, customer service, and similar interaction.