What's Lurking In The Tower On Revolution?

What element is being added to the program in the climatic scene in the episode of Revolution where it alluded to that the henchman taking the elevator to a restricted level of the mysterious Tower was murdered in a particularly grizzly manner?

Will viewers learn that extraterrestrials are behind the cause of the electromagnetic blackout?

These days, in order to condition us for what lies ahead, it always comes back to the aliens, doesn't it?

If it is revealed on Revolution that powers from beyond the world are the reason for the lack of power in the world set in the series, the narrative would interestingly parallel the setting hypothesized on Falling Skies.