It seems as if there is no rest for J.J. Abrams. HBO has just committed to a pilot based on Michael Crichton 1973 film with the same name.
“In another example of the premium cable network buying a project from an outside studio, HBO has made a pilot production commitment for a Westworld adaptation from Warner Bros. TV. The drama effort, inspired by Michael Crichton's 1973 film of the same name, is being billed as a dark odyssey about the dawn of artificial consciousness and the future of sin.
Bad Robot's Bryan Burk will be producing the pilot along with veteran producer Jerry Weintraub. Jonathan Nolan will co-write and direct the pilot. This project is Bad Robot’s first series for HBO.
Here is the trailer for the original film.