Described by Blizzard as a return to classic linear solo play for the longrunning CCG, Galakrond’s Awakening harkens back to when the series' solo adventures featured challenge-specific decks and unique bosses.

2020 is the year I'm going to challenge myself to return to the game board, having not shuffled through the game's decks in quite some time. But it's awesome to see it still receives a high-level of ongoing development support, and remains a meta challenge to such a diverse community. Here's BLizz's official line:

Galakrond’s Awakening contains four chapters, but with League of E.V.I.L. and League of Explorers versions of each! Will we see you in Northrend to retake Dalaran and save the world? Or soar with Rafaam to the highest heights of villainy? It’s your choice!

Once a chapter is completed Heroic Mode unlocks – players can build their own deck to take on a more challenging experience. As a reward for clearing Heroic, players can earn two different card backs, one good and one E.V.I.L.

The four chapters will roll out on a weekly basis like previous Solo Adventures. When Galakrond’s Awakening launches, you’ll be able to play through both the League of Explorers and League of E.V.I.L. versions of the first chapter. The first E.V.I.L. chapter will be free for all players.

Both League of E.V.I.L. and League of Explorers chapters in Galakrond’s Awakening will unlock on the following dates:

• Chapter 1 – 22 January
  
• Chapter 2 – 29 January
  
• Chapter 3 – 5 February
  
• Chapter 4 – 12 February

Equally, Blizzard reminds you to check out their official blog on the new content which will likely feature information that currently makes me look like a blundering Murlock if I tried to get through it.