Season 3 lost the plot. I loved the stuff set in Westworld too, and I do think that they needed to explore the different worlds, but I feel anytime they left Westworld, it became less interesting aside from the short visit to the Japanese world. Futureworld just wasn't very well conceived and wasn't very interesting. I don't know if I really care enough for a 4th season, as it all felt like a definite end by the end of the season.