All the "simulation" talk...

Ever see Pi?
Darren Aronofsky film... really very good... and ambiguous, sort of...

I don't think they will go the way of "LOST", or "Twin Peaks" with the story.
I think it will be left ambiguous throughout as it was in Pi.
Only the math was "real". The subject's delusions seemed real, and left the audience feeling confused as to the motivations of certain characters, and their "end game", but they were all chalked up to perception.

In this case, Elliot's perception, which is admittedly UNRELIABLE.

I love this show. The last epi was phenomenal! BEST SO FAR! But that ain't saying much as for me, every subsequent episode is better than the last!