I am trying to commit to the dual time line but there are things that do not add up for it. If Ford is the one that talked to Delores in his dream during the William timeline then we should of seen a younger version of Ford. I believe we are on one time line but getting to the maze from two different perspectives; that of an AI seeking sentience and that of a human trying to play the last game left in the park.
The MIB is a financial backer of the park that saved it from an ultimate demise before it even opened. When the guest wanted to thank MIB for his sister, he isn't allowed to finish his sentence before MIB barks he is on vacation. So we really don't know exactly what he did but I am assuming it has something to do with Westworld technology.
Ford's telepathy is all too eerie with Westworld. I am truly under the impression that Ford is an android and was Arnold's greatest creation in AI. Ford was a host made to run the park in the absence Arnold and also run park the way Arnold envisioned. However, something happened and Ford flipped, turning the hosts against Arnold. Something along the same lines as Flynn and Clu from Tron Legacy.
Then finally the maze. The maze is not a game but a ...