I'm bullish on specific areas improving (I'm sure you could selectively train an LLM on the latest Angular version to replace the majority of front-end devs given enough time and money, it's a limited problem space and a strongly opinionated framework after all), but for the most part enshittification is already starting to happen with the general models.
Nowadays even ChatGPT doesn't bother to even refer to the original question posed after a few responses, so you're left summarising a conversation and starting a new context to get anywhere.
So, yeah, I think we're very much into finding the equilibrium now. Cost vs scale. Exponential improvements won't be in the general LLMs.
Happy to be wrong on this one..