Definitely 2 timelines right now. Right after the massacre, and 2 weeks later. Bernard talking to Dolores was more of a flashback. The preview for the season showed a young William in a suit talking to Dolores. Don't know if that will be another timeline or just a series of flashbacks.
Pretty sure that was Teddy floating in the water. Was that a Ford alteration or did Bernard flood the area between the 2 timelines to kill all the hosts?
Bernard leaking fluid happened after he got knocked about in the head trying to save the stable boy. It looks like a temporary fix as you can see him shaking in the 2 weeks later timeline.
what will be made of them loading guest experiences and dna into the system? Bernard made a big deal of it, so I imagine it will come up again.
I was of the belief that Ford had created a Host that Dolores killed. After seeing his bloated corpse, I no longer believe that. But did he load his conscious into a lookalike host instead? not counting the kid version of himself that Bill promptly put a bullet in.