https://news.blizzard.com/en-us/blizzard/22833558/heroes-of-the-storm-news
Sounds like phase 1 of going into maintenance mode.
Over the past several years, the work of evaluating our development processes and making hard decisions has led to new games and other products that we're proud of. We now have more live games and unannounced projects than at any point in the company's history. We're also at a point where we need to take some of our talented developers and bring their skills to other projects. As a result, we've made the difficult decision to shift some developers from Heroes of the Storm to other teams, and we're excited to see the passion, knowledge, and experience that they'll bring to those projects. This isn't the first time we've had to make tough choices like this. Games like Diablo II, World of Warcraft, StarCraft II, Overwatch, and more would not exist had we not made similar decisions in the past.
Despite the change, Heroes of the Storm remains our love letter to Blizzard's worlds and characters. We'll continue actively supporting the game with new heroes, themed events, and other content that our community loves, though the cadence will change. Ultimately, we're setting up the game for long-term sustainability. We're so grateful for the support the community has shown from the beginning, and the development team will continue to support Heroes with the same passion, dedication, and creativity that has made the game such a unique experience.
We've also evaluated our plans around Heroes esports—after looking at all of our priorities and options in light of the change with the game, the Heroes Global Championship and Heroes of the Dorm will not return in 2019.
Sounds like phase 1 of going into maintenance mode.