Generative and Explainable AI is and will surely be the trend for the following years.
However, I'm not sure that Code Assistants is a real trend. I worked in that field for 2 years, and my findings are that there is a lack of all sides: dataset, models, and state-of-the-art. also, the interest in this kind of AI is not enough to push big companies to invest in it. unfortunately, this area will not see much progress right away.