Hearthstone Battlegrounds is adding Quests and a Season Track in a big update coming next week

pcgamer.com:

In terms of popularity, there's a case to be made that Hearthstone's Battlegrounds spin-off has superseded the original game, with the arrival of a major new patch to refresh the meta as eagerly anticipated as any card expansion. The next update is due to drop on August 30, and today Blizzard has begun detailing the contents, which include a refresh of the minion and hero pools, Battlegrounds Missions (think: dailies), as well as the addition of a rewards track that will contain new kinds of cosmetics.

The latter is no surprise given that the publisher has been trying hard to monetise the mode's runaway success for some time (it uses a season pass model in the absence of player's needing to buy card packs). You can read the fine detail in the official announcement, but the big new gameplay feature is going to be the Quest mechanic. Here's how it works: At the start of turn four (i.e. when you have six Gold) you'll be presented with three quests to pick from, each with a randomly selected reward. 

Here are the three initial quest and reward examples provided:

Game designer Mitchell Loewen tells me: «We're hoping that that flexibility gives players more opportunities for skill expression as they decide how they want their games to unfold.» Loewen mentions that they tested having the quests appear at various stages of the game, and ultimately found that having too many could be overwhelming. He say six gold felt like the sweet spot because: «You have the ability to buy two minions, so you could make meaningful progress on it. You've also bought a couple of minions already, so kind of already know what you want to do.»

Loewen joined the Hearthstone team in 2021. He has a Master's Degree in Game Design and previously