People have been predicting the singularity to occur sometimes around 2030 and 2045 waaaay further back then 2015. And not just by enthusiasts, I dimly remember an interview with Richard Darkins from back in the day...
Though that doesn't mean that the current version of language models will ever achieve AGI, and I sincerely doubt they will.
They'll likely be a component in the AI, but likely not the thing that "drives"