I guess it's all going to revolve about what happened during those two lost weeks, and how Bernard "killed" all the hosts.

I imagine they'll work out how Stubbs is back in the picture, why Charlotte isn't hanging around Bernard, and why there's now a giant fucking ocean in the middle of the park.

It also appears that Westworld is on Earth (as opposed to outer space) if the Navy has to arrive there by sea. And it also appears that Ford is really dead, rather than Delores shooting a host version of him.