This is a bit old, but I didn't see it posted anywhere on these forums so I figured I would.. anyway, some guy was at the first recording session for the new game, and he has a bunch of info on it as well as some actual sound clips. I guess there's some very minor joke spoilers in it, but I'm pretty anal about spoilers and I didn't mind that much. Here's the info:
http://forums.somethingawful.com/showthread.php?threadid=803575)
Adventure Gamers mentioned this awhile ago, it didn't tell all of that though. Very awesome.