If you have any questions you want answered by Blizzard make sure to grab this opportunity by asking your question through Twitter as Blizzard is having a 'chat with the devs' from 22:00 CET/4 PM EST today.
Use the hashtag #Blizzchat when submitting your question and Blizzard will answer it in a dedicated forum for their answers as there is a character limitation on Twitter. Feel free to share your questions in the comments below.

Links
Battle.net - Source