A review of Blizzard's famous historical games eventually leads to that question mark.
Thus, it is clear that every day, a historical game changes from a dark color to a bright color. Then the image above switches to the corresponding game picture. Until the countdown ends with that final question mark. As for what exactly that question mark is, let's wait and see.
The time has now moved to Diablo II.
According to Blizzard's official statement, this game will be announced at 1 PM Korean time on May 19, 2007.
Based on this, it is speculated that it is likely to be a StarCraft game.