A post on the sporadically updated official Team Fortress 2 blog reveals that the gameplay update for the Scout class is only a few short patches away from hitting the servers.
Valve's Robin Walker explains that the coding team has already moved on to the next class update, with only the final art needed to make the upcoming Scout update complete. Here's how things should play out.
We've got an update that should be out tomorrow with a bunch of bug & exploit fixes. Later this week we hope to have another update out that changes the way we store your unlockable items. You shouldn't notice much difference, other than if you play on multiple computers we'll now propagate your item choices. You can think of that update as the one that moves your inventory into the Steam Cloud. Once that's out of the way, we'll be able to ship the Scout pack.
I am filled with glee! The Scout is definitely my best class, and by that I mean the class I die the less as. I can't really measure my success on kills. I'm that bad.
That's what I'm talking about! [Team Fortress 2 Blog - Thanks Cody!]