As with many things on Westworld, there's not enough evidence to make any definitive conclusions. When she confronted Bernard (Jeffrey Wright) in the episode, he revealed that despite the impressive modifications she's made to her own attribute matrix, she's still playing a part in a larger narrative scheme. Maeve refused to believe this, and broke the tablet in a moment of highly relatable tech rage before we could find out exactly what would have waited for her on the train. She then asserted her own independence by recruiting the nude bandits Hector and Armistice for a trigger-happy massacre. If this was Ford's plan all along, it left a lot of Delos employees bleeding out on the squeaky-clean floors.
The degree to which Maeve is controlling her own path will likely remain a mystery for as long as the show continues. As with most discussions of free will and determinism -- the movie Arrival explores similar themes while also focusing on a mother and daughter -- there's simply no easy answer. Until co-creators Jonathan Nolan and Lisa Joy reboot the park for Season 2, we'll be left to speculate over the clues provided in the finale. (Like, who gave Felix that slip of paper with the coordinates?)