Without more information from Blizzard, I doubt there'll be much to talk about regarding the new systesm. I don't know what you have talked about previously but some might be interested to hear the thoughts on CC changes as well as incomming monster damage reduction and how some players may be put off that the game is getting even easier as it were.
I've had a few discussiosn where I express the lowering of difficulty of the game doesn't reduce the value of fun I have with it, in fact I find my frustrations about certain cheap deaths to be much more tolerable. This may have been talked about before, so forgive me if I'm just bringing up old news.
Sadly I'm fairly busy tonight so I wouldn't be able to tune in. Maybe I can check out the Twitch recording afterwards though. Have fun, break a leg, and all that jazz.