It's official. No Engineer update for quite some time. Valve has some asinine system they wish to put into place prior to the Engineer. Most likely all the classes will get new hats. There will be yet more new maps, but still no Engineer update.
http://communityfortress.com/tf2/news/robin-walker-on-competitive-tf2-and-future-updates.php
I have a vague feeling the update will get delayed even further. What with them having all these cool ideas for other things, and the engineer not having anyone to get packaged into a class with for a dual update.
It is sad day for Engineer.
*medic ubersaw violin taunt* Aww... that taunt is gone too.