Essentially this is how it unfolded: An update allowed Banana Peels to be crafted together, creating hexadecimal code which combined into a .png revealing some QR codes. With me? Good. The QR codes showed partial text, which eventually combined into this page of dialogue between Saxton Hale and some senators, speaking about Poopy Joe (also mentioned back in the WAR! update) and "monkeynauts."
Oh, but it doesn't end there! Super Monday Night Combat just updated last night, adding a space suit to the gorilla character, Cheston. Then, the official TF2 blog updated detailing how a weapon gets added into the game, showing off a new Pyro weapon. Then, at the end of the blog, this video is shown. At 7:08 YouTube tabs are shown with numerous music videos, including the Gorillaz and Goldfish. What the Hale?
Follow this thread to see the progress: http://forums.steampowered.com/forums/showthread.php?t=2760979
Also, Valve and AdultSwim are teaming up for something Team Fortress 2-related later on, as explained here:
http://lambdageneration.com/posts/adult-swim-and-valve-are-teaming-up-for-something-team-fortress-related/
[spoiler]My theories:
[Image: http://i3.kym-cdn.com/photos/images/newsfeed/000/320/945/11b.png]
[Image: http://wiki.teamfortress.com/w/images/a/a4/The_Moonman_Pack.png]
[Image: http://wiki.teamfortress.com/w/images/b/b4/DrGTF2Moonmanpack.jpg]
[/spoiler]Well, then. You know what to do, folks.