The update is a Spy!
 

Valve just can't stop trolling us:

http://www.teamfortress.com/spyupdate/

Re: The update is a Spy!
 

Couldn't help it, had to laugh when I saw this.

Did you notice they referred to the Pyro as a "she" in the most recent blog update? They edited it out now but it was funny indeed.

They are definitely creative over there, one thing I'm wondering now about that "Spy sapped mah update" - is it now Sniper+Spy or was all that Sniper stuff just to build up the suspense? I'd really love to see payload race maps :|

/edit: Confirmed it is both. Apparently the update will go live next thursday http://www.shacknews.com/onearticle.x/58658