https://www.washingtonpost.com/news/innovations/wp/2016/05/16/meet-ross-the-newly-hired-legal-robot/
My feeling on this is that using robots and data analysis has not worked in fields that require certain types of creative thinking and where human beings are decision makers. Radio, for insatnace, data analyzed itself to death.
I expect that robots (by which I mean AIs capable of doing legal research at a more sophisticated level than the average legal search engine does today) will be helpful tools. But put me in the Samuel T.Cogswell camp in believng that humans will continue to matter in the formulation of law.