In all relevant games from Blizzard soon there will be special events and awards in honor of Diablo. Apparently, "soon" means December 31.
Blizzard is celebrating twenty years of Diablo, and our other games are joining in the fun! Get the details: https://t.co/9vUubwu4Ya pic.twitter.com/xaConH7nrg
In Diablo III will be a commemorative event "Fall Tristram" by which players can once again experience the thrill of passing the first Diablo.
The Heroes of the Storm will be a new brawl on a unique field of battle, as well as a portrait in the style of Diablo.
Hearthstone Fans can also celebrate the 20th anniversary of Diablo: developers are advised to go to the tavern and take part in a new brawl, there you will have to wait a stranger in the hood with a sinister deck hands. Players are asked to solve the mystery of this stranger.