
They come for you

Conquest, or Pestilence. Interpretations differ. He rides the white horse.

Alice realizes she's in deep shit. Or blood.

War is here, on his red horse

War has to see Jared's ugly mug.

Famine rids the black horse.

Warden brought Hell to Superjail!, and now the Twins and Triplets have instigated the apocalypse.

And Death is here to enjoy himself.

They're gonna have themselves a real good time, and nothing's going to stop them.
The outcome of this revolution… will be left up to some analytical viewers to imagine for whatever crazy fanfic ideas they might dream up.
The Four Horsemen have cometh, in this nice ending gag that mythology lovers will dig.