So we know the creatures are actively trying to break Boyd, and they are getting smarter about luring them outside of the houses via letting the animals go.
There seems to be a direct plan from an unseen Entity to put them in more desperate conditions.
They were told that Fromshire feeds off hope.
When they dissected the creature, they saw that it had human organs.
I've seen a lot of theories of a mass wipe out happening soon, but what if it's a breeding/conversion cycle?
What if the entity is creating more creatures?
What if the creatures are the humans who survived by the end of the cycle, and have had all their hope and humanity sucked dry from them? They're so broken that they're nothing but husks and can only torture others to feel any sort of purpose?
Are we going to see Boyd in a Sheriff's uniform at the Series Finale, starting the cycle all over again?