The Westworld team was determined to address another pressing issue during their break, as well. It turns out, producers wanted to firm up their master plan for the entire series – all the way to the show’s eventual finale – and lay that groundwork in the first season. That should be quite reassuring to fans of complex, mythology-driven TV shows, which have a spotty record of longterm narrative coherence.
“[The production delay] wasn’t about getting the first 10 [episodes] done, it was about mapping out what the next 5 or 6 years are going to be,” Westworld actor James Marsden says. “We wanted everything in line so that when the very last episode airs and we have our show finale, five or seven years down the line, we knew how it was going to end the first season – that’s the way Jonah and [executive producer J.J. Abrams] operate.
Source and more: EW