A new image of the new creature - commonly referred to as "Endermen" - was released recently (enhanced here, for light levels). This image is much more up-close-and-personal than the first, giving us a good look at the new creatures. It would seem that wearing a pumpkin prevents the new mob from seeing you, although this is unconfirmed at present.
Additionally, Notch mentioned a possible name-change for the newly minted mob, "Farlander" being suggested and, apparently, already in heavy use.
Apparently they don't consider Jack Pumpkinhead here to be a threat.
Skeletons as a decoration? Sweet.
How do you figure the screenshot is fake O.o?
Anyways I vote enderman, I think it sounds better and farlanders doesn't sound suiting because they don't exactly live anywhere far, as "far" (XD) as I know.
A creepypasta CAN be a meme if it's known widely enough and used enough.
I'd have to say the fact that everyone knows what Slenderman is and uses it in a few vids. R33mix (I think) has even made a GMod/TF2 creepy vid with Slenderman in it.
Because Slendy is awesome and having an homage to him in Minecraft is amazing.
Sorry to say, They are
http://www.minecraftwiki.net/wiki/Enderman
In Addition to the hints notch has dropped, Screen shots he has shared.
You don't think the ones who suggested Farlanders are part of the community?
Farlanders.
It's a good suggestion. It suggests they ORIGINATE from the mysterious "edge" of the world.
Enderman.. a good name that sounds too much like a meme. Though it sounds like whatever's named that should be more "insect-like". That's just what the name sounds like, I guess.