Great episode!
I called William's turn to MIB being caused simply because he was jaded by Dolores's fakeness, seeing her with other guys going through the same exact loop he thought was an experience unique to him. I think that was a better revelation than a gimmick like a major unforseen tragedy.
I'm pleased with the outcome of Maeve's story. We got pretty solid confirmation that Ford was behind it all, including all the ridiculous "oversights." That's all I wanted. Since it was all planned, I had assumed that the dead security and butchers were hosts... but as we saw in the end, Ford has no qualms about a buttload of actual innocents killed to serve his greater purpose. Still, it was all orchestrated to have Maeve escape.
I'm with the rest that Ford isn't dead. Either he sent a host to do his speech, the one he was building in that lab, or he himself will live on as a host. In either case, it leaves the board dead for the park to carry on without their meddling as he had wished.
William will remain alive as the sole board member, happy and thrilled to continue financing the park as it is now REAL like he always wanted.
I'm still curious about the whereabouts of Stubbs and Elsie. No bodies yet.
The Samurai World thing was surprising. Is this a prototype park or does the "park 1" note indicate there are indeed fully operational parks out there? If so, why would the Delos board try so hard to steal secrets specifically from Ford's park where they would meet the most resistance? To answer myself, it's probably because his park's hosts are by far the most advanced and the others have cruder robots. Stealing his secrets would allow them to upgrade all their Delos Destinations to be far more appealing and profitable.