Blizzard will stream a live Q&A session with game director Ben Brode and principal game designer Mike Donais this Friday June 30th at 10.30AM PDT. That's 18:30PM in the UK and 19:30PM in Europe.
The session will cover events of the Journey to Un'Goro expansion in general, as well as the incoming Caverns Below nerf that was recently announced.
You have a few ways of submitting questions. You can either tweet the developers at the official PlayHearthstone account (include the hashtag #QA when you do so), or you can post a question in the comments of the official blog announcement.
Alternatively, you can just throw your question into the mix during the stream itself, which will be taking place on the official Hearthstone Twitch channel. We've embedded the stream here for you as well:
Although we don't expect to learn any details about the next expansion on this stream, it's very possible we'll at least get a date for the big reveal. We'll report back if that is indeed the case.