A lot of questions are still focused on the technology part of Artificial Intelligence. However, a lot of those questions might fit better on stats.SE, or Data Science.SE. So what is left for this site?
The answer is that there is more than enough left for this site, we just have to explore it. In the past week, over 40 papers tagged Artificial Intelligence have been posted on arXiv. I am sure there are a lot of papers there where we can ask good questions about, that are not on topic on stats.SE or Data.SE. So explore arXiv and ask good questions!