Can we please have leviathans come back in Season 8?
Dick Roman left behind an entire standing army. A very, very hungry army, with nothing to do. These leviathans looked to him for everything, and now he’s gone, and many of his lieutenants—Edgar, Susan, anyone who was in the Roman Enterprises building at the time—were decommissioned by Crowley and his goons.
Roman’s motto was “There’s no such thing as monsters,” but he’s not here to enforce that anymore. The leviathans took over people’s brothers, sisters, mothers, fathers, lovers. What happens when the radio silence starts to make them antsy? Just imagine these leviathans, still deep undercover, snapping at their human children at the table, chewing on food that will never fill them, not really. How many of them are responsible for multiple homicides, and just changed form as they went? Did some of them settle into their roles and forget themselves cutting bread off of peanut butter and jelly sandwiches, shoving their hunger to the back of their minds in exchange for a human life? How many of them couldn’t stand the silence anymore and just walked into the sea, without a word?
How many of them are still working under Dick Roman’s plan, buying up real estate and experimenting in labs and anticipating his will, even as the plan falls apart around them?
How many of them stumbled onto Kevin’s doorstep, half-crazed, looking for revenge, or answers, or a way back home?
The leviathans’ father is just as gone as the angels’, but they’re chaos monsters in a world they thought was ripe for the picking. The one force of organization and restraint keeping them from an all-out bloodbath is gone. What happens now?
Of all my complaints about Season 8, this is the one I feel most keenly: What happened to the Leviathan?
All we know at the end of Season 7 is that "if you cut off the head, the body will flounder". It doesn't follow, however, that the body will die. In fact, what we know of the Leviathan seems to imply the exact opposite -- that, if left to its own devices, the body will reanimate the head over time.
We saw this in a micro-sense. Cutting off a Leviathan's head does not kill the beast, only momentarily delay it, and given enough time, the head will reattach and all wounds will heal. And Crowley warns Sam that this holds true in a metaphorical sense, cautioning him in the lab not to let the Leviathan reorganize (meaning that the creatures will not die simply because Dick is gone).
The truth is, we know how to gank a Dick, but how do you kill your average, everyday, garden variety Leviathan? We still don't know. Decapitation doesn't permanently work. Neither does Borax, as nasty as it is, seem to cause them any lasting harm. The solution the Winchesters came up with was to either a) cut off the head and put it in a box (which, side note, doesn't actually kill the head, as Jody alluded to in "Time After Time"; the head is still alive and trying to get back to its body, which is the most terrifying thing I've ever heard dear lord), or b) run away, and fast.
And yet, the Leviathan must be able to be killed somehow, because a) invincible monsters are stupid, and b) we actually see several Leviathan in Purgatory, which means that somehow, they must have died. These could be bibbed Leviathans (though I'd always thought that bibbing, rather than killing you, erased you and your knowledge from existence entirely, which I think is probably much scarier to an all-consuming monster). Or they could be Leviathans that others have managed to kill, somehow. Perhaps the answer was on the rest of the Tablet.
All of this, however, is really only a small canonical aside, when all I wanted to do was admit how utterly fascinated I am by the ideas you've presented above. How amazing would it have been to see the Leviathan having the same identity crisis the angels did back in Season 4? Especially since this time, there would be no great mystery as to where the absent father had run off to -- it was obvious what had happened to him.
Except, actually, now that I think about it... not really, right? I mean, there were no other Leviathan in that laboratory with Dean and Cas. Only Dick. So nobody got to see what really happened to him. They walked into the room, and he had simply vanished.
How do the Levi react to that? Do some become new Raphaels and Zachariahs, and try to stick to Dick's original plan? Do others become despondent and wage rebellion, like Uriel? Do others still become fond of humans and assimilate, as Anna did, or toy with them as Gabriel did?
And do some of them tear up the great script and forge their own paths, one of free will and choice, maybe even try to bring the humanist message to their fellow chompers? Could you imagine it, the Castiel!Leviathan? Not Levi!Cas, but that one Leviathan so touched by humanity that he (or she) breaks away from the school of piranhas to forge his (or her) own fate?
omg gimme gimme GIMME