Hearthstone's next adventure expansion, Blackrock Mountain is due to release very soon. It'll be a multi-stage singleplayer expansion much in the same vein as Naxxramas was, and the first wing can be expected April 2nd in the Americas and April 3rd everywhere else.
Yesterday I wrote a round-up of all the cards that Blizzard has revealed to us so far, but it seems that they've decided not to wait until the full release of Blackrock to let the others out of the bag. Tomorrow a special livestream will be held on the PlayHearthstone Twitch channel and will not only show off the remaining cards it'll show them in action as community managers Whirthun and Zeriyah use the new cards for special show matches.
It's due to begin at 10:00AM PDT on Monday, tomorrow. I've embedded the Twitch channel below, but keep an eye on the SanitariumFM Twitch channel for weekly streams as I attempt to bludgeon my way through Blackrock's wings as I did Naxxramas'.
[plumwd_twitch_stream channel="playhearthstone"]