I happened to see this yesterday, and it made me very happy.
In my pants, new Nick dialogue? YES.l4d.com/blog/post.php
I'm actually sort of excited for the infected bots in Versus. And getting rid of the auto-spawning in finales. Granted you can't have a team attack with bots, but at least that way it's not like 1 vs. 4 when a bunch of people leave a match. :/
ASDGHFJLK I CAN'T WAIT FOR THE PASSING. Why can't it be Spring yet? :/