Well, we've got confirmation (again) of the March 17th date for news on the upcoming expansion, this time with a time for the livestream - 9am PT (5pm CET)!

Quote From Blizzard

Mark your calendars! On March 17 at 9 a.m. PT, on both Twitch and YouTube, Brian Kibler will kick off our massive reveal showcase stream with Hearthstone Game Director Ben Lee! From there, we’ll dive deeper into our plans with Game Designers Chadd Nervig and Dean Ayala. We’re going to share more than we ever have before, so tune in and be the first to know what’s coming next to the tavern in 2020 and beyond. See you there!

What do you expect to see, given we're seeing 'more than ever before'?